About Angel
Angel Sayani is the Founder and CEO of IntellChromatics Inc., a technology company offering AI-powered software development, cloud security, and vulnerability assessment services. She holds more than 35 advanced IT certifications, including CompTIA Advanced Security Practitioner™ (CASP+), Certificate of Cloud Security Knowledge (CCSK), Certified Forensics Analyst (CFA), Certified Artificial Intelligence Expert, and Certified Augmented Reality Expert®. A published O'Reilly Media author of the CompTIA Linux+ Study Guide, Angel has conducted advanced research on quantum computing and cryptography at New York University. She was named one of the "10 Most Ambitious Leaders to Watch in 2024" and has been featured by CompTIA, ISC2, the Cloud Security Alliance, and the Linux Professional Institute. Her writing focuses on making complex technology topics accessible, from augmented reality and robot vacuums to undersea cables and the protocols that quietly hold the internet together.
Articles by Angel
What AR Glasses Are Actually For, Now That the Hype Has Faded
Augmented reality glasses finally started working. Here's what they actually do now, how they compare to other wearables, and what to look for if you're thinking of buying a pair.
Why Robot Vacuums Got Smart Enough to Map Your House (And What They Do With It)
Modern robot vacuums use LiDAR, visual SLAM, and AI to map your home. Here's how they see, what they do with the map, and why the privacy policy matters more than you think.
How At-Home EEG Headsets Are Trying to Turn Brainwaves Into Input
Consumer EEG headsets promise to turn your thoughts into clicks. Here is what they actually do, what they cannot do, and what to be skeptical about before you buy one.
Why GPS Satellites Have to Account for Einstein’s Relativity to Work
Without Einstein's relativity corrections, GPS would drift ten kilometers a day. Here's exactly how 1915 physics ends up baked into the firmware of every satellite navigation system.
Why Undersea Cables, Not Satellites, Carry Almost All the Internet
Roughly 99 percent of international internet traffic travels through fiber optic cables on the ocean floor. Here is who owns them, what happens when they break, and why satellites cannot replace them.
Why BGP Is the Protocol That Runs the Internet, and Almost Nobody Talks About It
BGP runs the entire internet and almost nobody has heard of it. Here's how it works, why it breaks in headline-making ways, and how the industry is trying to secure a protocol sketched on three napkins in 1989.