[just-ok]

> low power consumption

Hmm, well the visual cortex makes up almost a third of our entire brain, and the brain uses ~20% of our daily energy. I’d hardly call that “low power”! Though granted I don’t imagine you can break a sweat just from thinking.

[aasasd]

> I don’t imagine you can break a sweat just from thinking

I heard that people who were asked to do sorting tasks, i.e. just separate big oranges from small ones, got tired as heck, comparably to physical workers. Then again, dunno about sweat.

[just-ok]

Yep, mental exhaustion is undoubtedly a thing! I'd love to see how heart rates change with something like test question difficulty. Since sweat is generally a product of heat and occurs when your heart works harder during exercise, I wonder if the heart also works harder to pump the brain with more oxygen to enable it to... think harder? Obviously just musing, am no physiology expert.

[shariqm]

I would definitely call that low power. Our entire brains only use 20 watts of power, compare that to the 85,000 Watts IBM's Watson uses.

[rewoi]

What is an alternative for example for driving? Computer and lidar that needs a kilowatt just to do single task, not universal?