In October 2019, Google announced its 53-qubit quantum computer named Sycamore had achieved ‘quantum supremacy.’

That’s when quantum computers can complete tasks exponentially more quickly than their classical counterparts.

In this case, Google said its quantum machine completed a task in 200 seconds that would have taken the world’s most powerful computer 10,000 years to complete. IBM, another major player in quantum computing, took issue with the findings.

Either way, it was a big milestone in quantum computing, and it’s leading to a lot of hype in the field. Here’s how quantum computing works, and how it could change everything from Wall Street to Big Pharma and beyond.

CNBC explores the rise of open source software and how it went from fringe movement to mainstream and core to the every enterprise.

Open-source software powers nearly all the world’s major companies. This software is freely available, and is developed collaboratively, maintained by a broad network that includes everyone from unpaid volunteers to employees at competing tech companies. Here’s how giving away software for free has proven to be a viable business model. 

As millions of Americans hit the roads today for Thanksgiving travel, I wonder how different it would be if self-driving cars were the norm.

CNBC explores the current state of self-driving cars.

More companies are trying to bring self-driving cars to the masses than ever before, but a truly autonomous vehicle still doesn’t exist. It’s not clear if, or when, our driverless future will arrive. Where exactly are we with self-driving cars, and when can we expect them to be a part of our daily lives? 

CNBC got a first look inside Lyft’s level 5 lab, where it builds self-driving cars that are being tested on roads now.

Self-driving rides are also available to select Lyft passengers in Arizona and Las Vegas, where Lyft opened its app to autonomous vehicle companies Waymo and Aptiv.

Lyft says it’s completed more than 75,000 self-driving rides.

Watch the video to see how the program works.

CNBC takes a closer look at what’s going on with its cryptocurrency project, Libra

When Facebook first announced it was getting into the crypto business—with a basically unregulated currency called Libra—the reaction from Wall Street and government bankers was about as expected. Fast-foward a few months, and Libra is in trouble. The social media giant had lined up a long list of corporate backers for the initiative, including major players in the payments space. And in October 2019, several prominent backers began to back out. Here’s how Facebook’s crypto future got into serious trouble.

Deepfakes have started to appear everywhere.

From viral celebrity face-swaps to impersonations of political leaders – it can be hard to spot the difference between real and fake.

Digital impressions are starting to have real financial repercussions. In the U.S., an audio deepfake of a CEO reportedly scammed one company out of $10 million.

With the 2020 election not far off, there is huge potential for weaponizing deepfakes on social media.

Now, tech giants like Google, Twitter, Facebook and Microsoft are fighting back. With Facebook spending more than $10 million to fight deepfakes, what’s at stake for businesses, and what’s being done to detect and regulate them.

CNBC has a look at the Waldorf School where technology is not ever present in the classroom – an idea which runs counter to the prevailing philosophy that more tech equates to better education.

The Waldorf teaching philosophy is used at more than 1,000 institutions in 91 countries, including 136 schools in the U.S. Technology and screens aren’t used at all through 8th grade, and are scarce even in high school. CNBC gets an inside look at what it is like.