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What are some of the things you don’t think machines are ever going to be able to do? Computers are still very weak when it comes to understanding. They can’t process a textbook and use the knowledge the way humans do. But that’s being worked on. There’s no real problem- solving limit to what can be done. Understanding what does it mean in terms of consciousness or anything like that, I know that the software won’t be in that realm at all. But it will be an incredible problem solver.


Microsoft founder Bill Gates spoke with TIME’s Nancy Gibbs about looking forward and what makes him optimistic about the future.

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It’s crazy to think that we still don’t quite understand the mechanism behind one of the most common medical interventions — general anaesthetic.

But researchers in Australia just got a step closer by discovering that one of the most commonly used anaesthetic drugs doesn’t just put us to sleep; it also disrupts communication between brain cells.

The team investigated the drug propofol, a super-popular option for surgeries worldwide. A potent sedative, the drug is thought to put us to sleep through its effect on the GABA neurotransmitter system, the main regulator of our sleep-and-wake cycles in the brain.

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  • Ketones could super-charge the body in a way that’s unlike any other source of fuel.
  • San Francisco-based startup HVMN recently launched a drink made of pure ketone ester to harness its performance-boosting qualities.
  • The company partnered with Oxford University to leverage $60 million-worth of scientific research on elite athletes.

The nutrition label on a shot-sized bottle of this clear, odorless liquid defies traditional explanation. It contains 120 calories — roughly the equivalent of a hearty slice of bread — yet it has no fat, no protein, and no carbohydrates.

Those calories instead come from ketones, an ingredient that Geoff Woo, cofounder and CEO of San Francisco-based human performance startup called HVMN (pronounced “human”)to call “the fourth macronutrient.”

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If you feel like having one of your fundamental beliefs thrown out the window, try this on for size — under the right conditions, you can boil water until it freezes solid.

Yep, as the Cody’s Lab video above demonstrates, after a few minutes of boiling, water starts to form solid ice crystals, and is actually cold to the touch. Crazy, right?

So what’s going on here?

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