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Most brains don't treat themselves to an abundance of training data, the ones who do seem pretty knowledgeable to me. Witty comment aside, the human brain is p
by Feorn 3y ago
Most brains don't treat themselves to an abundance of training data, the ones who do seem pretty knowledgeable to me.
Witty comment aside, the human brain is pretty efficient in terms of energy use considering it's taking in a ton of data while it's conscious. Two each audio and video streams, olfactory, gustatory, touch, vestibular, and all the interoception. Inference and training in real time. All for the low price of 125 watts, a quarter that if you're just measuring the brain and not the whole body.
The paper was published last year. https://www.frontiersin.org/journals/science/articles/10.3389/fsci.2023.1017235/full https://www.frontiersin.org/journals/science/articles/10.338...
I'm not convinced this field will outpace silicon or whatever succeeds it, considering how big the semiconductor industry is.
- vasco 3y agoAll for the low price of 125 watts, but you need to sleep one fourth of the time, during which it doesn't do much, and on the other three thirds "Most brains don't treat themselves to an abundance of training data". I'm not sure I'd call this machine efficient at using its computational power.
- danielbarla 3y agoAlso, that is the net energy expenditure of the body, but not the input required. We use a relatively antiquated form of the internal combustion engine to turn food into energy, which seems to be around 25% efficient, at best. It's also built on chains of other fairly inefficient biological entities, so it's hard to say what the overall efficiency is, but suffice to say that we're prevented from using the most efficient energy sources.
- L_226 3y ago> during which it doesn't do much I know this was in jest, but if sleep was not a critical biological process we would have evolved to not do it already
- vasco 3y agoIt's basically a cleaning cycle for the brain. If we don't sleep we die pretty soon. Meaning it's necessary daily scheduled maintenance downtime, which should count directly to efficiency calculations!
- pennomi 3y agoI have a suspicion that organoids will be to artificial intelligence what ornithopters are to flight. Technically possible, but reinventing it from scratch instead of following biology strictly will give us dramatic performance improvements.