Houston expert weighs in on the trustworthiness of cryptocurrency

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Detractors are suspicious of the anonymity that comes with blockchain technology. Supporters say it's exactly the point. Photo via David McBee/Pexels

Interest in cryptocurrencies reignited during the pandemic, driven in part by trillions of dollars in stimulus money that left many investors with “free money” to put to work. And while bitcoin recently tumbled nearly 55 percent from its peak, it remains the most valuable crypto asset in the world, with a market capitalization of around $589 billion. Its investors argue that it’s still a safer bet than stocks during this period of economic upheaval.

A renewed interest in cryptocurrencies — digital currencies that rely on blockchain technology, in which transactions are verified and records maintained by a decentralized system that uses cryptography — is widespread. Large corporations like Tesla, Mass Mutual and KPMG Canada have announced plans to hold cryptocurrency assets in treasury or accept them as payment. Meanwhile, major financial institutions are offering customers more digital asset investment options. Twelve years after bitcoin’s birth, mainstream investors are honing in on the currency, too.

In the midst of this market fascination, a fundamental question still remains. What exactly is cryptocurrency, and why should we care? And what about other industry buzzwords, like blockchain, decentralized exchanges or non-fungible tokens (NFTs)? Are they all just fads that will fade away?

Some have called cryptocurrency a Ponzi scheme, a tool for illicit activities, or a short-term fascination that will be irrelevant in a few years. It’s an understandable mindset, since there’s no intrinsic value in cryptocurrencies — not unlike the U.S. dollar after it stopped being backed by gold in the 1970s. But it’s also a shortsighted one. Blockchain technology, which allows users to exchange information on a secure digital ledger, is extremely useful because it automates contractual arrangements through computer programming.

I’m a firm believer that cryptocurrencies and the blockchain technology that underpins them are here to stay, and understanding how this technology has transformed our environment, and how it will continue to evolve, is critical to succeeding in business.

First steps

Bitcoin took the first major steps towards a truly electronic cash system in 2008, in the midst of one of the worst financial collapses of all time. Governments worldwide were bailing out financial institutions that had been deemed “too big to fail.” Perceptions of economic inequality spurred movements such as Occupy Wall Street, which was fueled by a distrust in banks.

Bitcoin, on the other hand, wasn’t created by a trusted source — in fact, no one knows exactly who invented it. In a 2008 white paper, “Bitcoin: A Peer-to-Peer Electronic Cash System,” Satoshi Nakamoto — the pseudonymous individual presumed to have developed bitcoin — described the currency as a way to securely facilitate financial transactions between parties without having to involve a central intermediary. No longer would people have to put their trust in the large financial institutions that failed them during the financial crisis.

Detractors find the lack of a central authority with blockchain worrisome, but proponents say it’s exactly the point: You no longer have to trust the person or institution you’re dealing with. You only have to trust the algorithms that run the program — and presumably an algorithm will never run off with your money.

Instead, blockchain enables a cooperative of members to run the shared network ledger required to keep track of a currency’s credits and debits. No one can shut down the system so long as a group of computers anywhere in the world is able to connect to the internet and run bitcoin’s software.

Because of bitcoin, today we can uniquely own digital assets and transfer them with the certainty that people can’t spend the same cryptocurrency twice. The transactions that bitcoin-like applications make possible are registered in permanent and immutable digital records for all to see in a common ledger.

By enabling fast and easily verifiable transactions, blockchain technology is also streamlining business operations in banking, supply chains, sustainability, healthcare and even voting. Development in these sectors and others is continuing at an intense pace. Annual global funding of blockchain projects now runs in the billions of dollars. From 2020 to 2021 alone, it jumped from several billion to nearly $30 billion.

Second generation

Since bitcoin’s arrival, we’ve seen a second, more sophisticated generation of cryptocurrencies evolve, with Ethereum as their flagship. Ethereum has its own programming language, enabling users to write and automate self-executing smart contracts, allowing for the creation of tokens for a specific use. For example, imagine that when Uber was founded, it had created an Uber token, and only people who owned Uber tokens could use the rideshare service. Tokens currently power thousands of decentralized applications that give people more privacy and control in a variety of areas, such as internet browsing, financial services, gaming and data storage, among others.

Some critiques of cryptocurrency remain. One growing concern is that cryptocurrencies require a significant amount of energy to run their networks, leading to higher transaction costs, energy waste and limited scalability. Newer cryptocurrencies are attempting to find ways to verify transactions that require less energy.

Some people also worry about ongoing volatility in cryptocurrency markets. A third generation of cryptocurrencies has emerged to address this concern: so-called “stablecoins,” which are pegged to a government-issued currency, a commodity, assets, or basket of assets. For some, stablecoins are serving as an onramp into the world of crypto from the world of traditional finance.

Before a new technology becomes part of everyday life, we often see a long period of development, improvement and consumer adoption. Cryptocurrency and blockchain markets are still in this early development stage, but they’re also moving quickly into the mainstream. The total market capitalization of cryptocurrencies late last year briefly reached the $3 trillion mark, or roughly 15 percent of the U.S. GDP, and there’s been more than $100 billion locked into decentralized finance applications.

Large companies like IBM, Amazon and Bank of America are leading the way by tapping into blockchain technology in their daily business activities. It won’t be long until this market, previously characterized by speculation and wild volatility, will be transformed into a stable infrastructure framework. But companies need to get up to speed on the industry now. Those that commit to doing so will be the ones that thrive.


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This article originally ran on Rice Business Wisdom and was written by Manolo Sánchez, an adjunct professor of operations management at the Jones Graduate School of Business at Rice University.

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Texas cybersecurity co. expands unique train-to-hire model to Houston

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It’s increasingly more difficult to ensure the confidentiality, integrity, and availability of proprietary data and information in the ever-changing, ever-evolving digital world.

Cyberattacks, including malware, phishing, and ransomware, are becoming increasingly common and sophisticated, posing a consistent threat to a company’s sustainability and bottom line.

To combat that trend, Nukudo, a San Antonio-based cybersecurity workforce development company, is expanding its initiative to bridge the global cybersecurity talent gap through immersive training and job placement to Houston.

“We saw that there was a need in the market because there's a shortage of skilled manpower within the cybersecurity industry and other digital domains,” says Dean Gefen, CEO of NukuDo. “So, our initial goal was to take a large pool of people and then make them to be fully operational in cybersecurity in the shortest amount of time.”

The company refers to the plan as the “training-to-employment model,” which focuses on providing structured training to select individuals who then acquire the skills and knowledge necessary to secure and maintain fruitful careers.

The company identifies potential associates through its proprietary aptitude test, which recognizes individuals who possess the innate technical acumen and potential for success in various cybersecurity roles, regardless of their level of education.

“We take in people from all walks of life, meaning the program is purely based on the associate’s potential,” Gefen says. “We have people who were previously aircraft engineers, teachers, graphic designers, lawyers, insurance agents and so forth.”

Once selected, associates are trained by cybersecurity experts while gaining hands-on experience through scenario-based learning, enabling them to be deployed immediately as fully operational cybersecurity professionals.

The program training lasts just six months—all paid—followed by three years of guaranteed employment with NukuDo.

While in training, associates are paid $ 4,000 per month; then, they’re compensated by nearly double that amount over the next three years, ultimately pushing their salaries to well into the six figures after completing the entire commitment.

In addition to fostering a diverse talent pipeline in the cybersecurity field, NukuDo is creating a comprehensive solution to address the growing shortage of technical talent in the global workforce.

And arming people with new marketable skills has a litany of benefits, both professional and personal, Gefen says.

“Sometimes, we have associates who go on to make five times their previous salary,” says Gefen. “Add to that fact that we had someone that had a very difficult life beforehand and we were able to put him on a different path. That really hits home for us that we are making a difference.

Nulkudo currently has partnerships with companies such as Accenture Singapore and Singapore Airlines. Gefen says he and his team plans to have a new class of associates begin training every month by next year and take the model to the Texas Triangle (Houston, Austin and Dallas)—then possibly nationwide.

“The great thing about our program is that we train people above the level of possible threat of replacement by artificial intelligence,” Gefen says. “But what we are also doing, and this is due to requirements that we have received from clients that are already hiring our cyber professionals, is that we are now starting to deliver AI engineers and data scientists in other domains.”

“That means that we have added more programs to our cybersecurity program. So, we're also training people in data science and machine learning,” he continues.

All interested candidates for the program should be aware that a college degree is not required. NukuDo is genuinely interested in talented individuals, regardless of their background.

“The minimum that we are asking for is high school graduates,” Gefen says. “They don't need to have a college degree; they just need to have aptitude. And, of course, they need to be hungry to make this change.”

2 Houston universities declared among world’s best in 2026 rankings

Declaring the Best

Two Houston universities are in a class of their own, earning top spots on a new global ranking of the world's best universities.

Rice University and University of Houston are among the top 1,200 schools included in the QS World University Rankings 2026. Ten more schools across Texas make the list.

QS (Quacquarelli Symonds), a London-based provider of higher education data and analytics, compiles the prestigious list each year; the 2026 edition includes more than 1,500 universities from around the world. Factors used to rank the schools include academic reputation; employer reputation; faculty-student ratio; faculty research; and international research, students, and faculty.

In Texas, University of Texas at Austin lands at No. 1 in the state, No. 20 in the U.S., and No. 68 globally.

Houston's Rice University is close behind as Texas' No. 2 school. It ranks 29th in the U.S. and No. 119 in the world. Unlike UT, which fell two spots globally this year (from No. 66 to 68), Rice climbed up the charts, moving from 141st last year to No. 119.

University of Houston impresses as Texas' 4th highest-ranked school. It lands at No. 80 in the U.S. and No. 556 globally, also climbing about 100 spots up the chart.

Rice and UH are on a roll in regional, national, and international rankings this year.

Rice earned top-15 national rankings by both Niche.com and Forbes last fall. Rice claimed No. 1 and UH ranked No. 8 in Texas in U.S. News & World Report's 2025 rankings. Rice also topped WalletHub's 2025 list of the best colleges and universities in Texas for 2025.

More recently, in April, both UH and Rice made U.S. News' 2025 list of top grad schools.

In all, 192 U.S. universities made the 2026 QS World University Rankings — the most of any country. Topping the global list is the Massachusetts Institute of Technology (MIT).

“The results show that while U.S. higher education remains the global leader, its dominance is increasingly challenged by fast-rising emerging systems,” says the QS World University Rankings report. “A decade ago, 32 American universities [were] featured in the world’s top 100; today, that number has dropped to 26, and only 11 of these institutions have improved their position this year."

The 12 Texas universities that appear in the QS World University Rankings 2026 list are:

  • University of Texas at Austin, No. 20 in the U.S. and No. 68 in the world (down from No. 66 last year).
  • Rice University, No. 29 in the U.S. and No. 119 in the world (up from No. 141 last year).
  • Texas A&M University, No. 32 in the U.S. and No. 144 in the world (up from No. 154 last year).
  • University of Houston, No. 80 in the U.S. and No. 556 in the world (up from 651-660 last year).
  • University of Texas at Dallas, No. 85 in the U.S. and No. 597 in the world (down from 596 last year).
  • Texas Tech University, No. 104 in the U.S. and No. 731-740 in the world (unchanged from last year).
  • University of North Texas, No. 123 in the U.S. and No. 901-950 in the world (up from 1,001-1,200 last year)
  • Baylor University, tied for No. 136 in the U.S. and at No. 1,001-1,200 in the world (unchanged from last year).
  • Southern Methodist University, tied for No. 136 in the U.S. and at 1,001-1,200 in the world (unchanged from last year).
  • University of Texas Arlington, tied for No. 136 in the U.S. and at 1,001-1,200 in the world (unchanged from last year).
  • University of Texas at San Antonio, tied for No. 136 in the U.S. and at 1,001-1,200 in the world (unchanged from last year).
  • University of Texas at El Paso, No. 172 in the U.S. and at 1,201-1,400 in the world (down from 1,001-1,200 last year).
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This article originally appeared on CultureMap.com.

Houston students develop new device to prepare astronauts for outer space

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Rice University students from the George R. Brown School of Engineering and Computing designed a space exercise harness that is comfortable, responsive, and adaptable and has the potential to assist with complex and demanding spacewalks.

A group of students—Emily Yao, Nikhil Ashri, Jose Noriega, Ben Bridges and graduate student Jack Kalicak—mentored by assistant professor of mechanical engineering Vanessa Sanchez, modernized harnesses that astronauts use to perform rigorous exercises. The harnesses are particularly important in preparing astronauts for a reduced-gravity space environment, where human muscles and bones atrophy faster than they do on Earth. However, traditional versions of the harnesses had many limitations that included chafing and bruising.

The new harnesses include sensors for astronauts to customize their workouts by using real-time data and feedback. An additional two sensors measure astronauts’ comfort and exercise performance based on temperature and humidity changes during exercise and load distribution at common pressure points.

“Our student-led team addressed this issue by adding pneumatic padding that offers a customized fit, distributes pressure over a large surface area to reduce discomfort or injuries and also seamlessly adapts to load shifts — all of which together improved astronauts’ performance,” Sanchez said in a news release. “It was very fulfilling to watch these young engineers work together to find innovative and tangible solutions to real-world problems … This innovative adjustable exercise harness transforms how astronauts exercise in space and will significantly improve their health and safety during spaceflights.”

The project was developed in response to a challenge posted by the HumanWorks Lab and Life Science Labs at NASA and NASA Johnson Space Center for the 2025 Technology Collaboration Center’s (TCC) Wearables Workshop and University Challenge, where teams worked to solve problems for industry leaders.

Rice’s adaptive harness won the Best Challenge Response Award. It was funded by the National Science Foundation and Rice’s Office of Undergraduate Research and Inquiry.

“This challenge gave us the freedom to innovate and explore possibilities beyond the current harness technology,” Yao added in the release. “I’m especially proud of how our team worked together to build a working prototype that not only has real-world impact but also provides a foundation that NASA and space companies can build and iterate upon.”

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