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CrankGPT

crankgpt.com

121–130 of 252 posts

Re: CrankGPT

#122

When I was at Peloton a long time ago, someone proposed an April Fools’ joke where we could announce a dynamo add-on that would let you power your house from your bike. The math isn’t as bad as you might think: 200Wh (about a 60 min, somewhat intense ride) seems to be about 20 minutes for a H/B100. Still 3x, but not bad at all! I remember the idea being dismissed quickly because people would likely actually want it.

200W is pretty good FTP for an "untrained" cyclist. FTP is the maximum you can sustain for a single hour, but you're not going to do multiple back-to-back.

Obviously the peloton crowd is biased towards people who will have better endurance and higher FTP, but basically the upshot is you could run one card for one hour with the effort of a 100km long ride which most recreational cyclists do once a week.

Re: CrankGPT

#125

Earlier quoted context omitted.

Isn’t that a black mirror episode? Anyways, much like the Matrix, using humans for energy is insanely inefficient.

Yes, Fifteen million merits, one of my favorite episodes.

"What are we powering? Why are we powering it? For what?"

Re: CrankGPT

#127
post #84

Earlier quoted context omitted.

For reference, this is what 700W cycling looks like: https://www.youtube.com/watch?v=S4O5voOCqAQ

I took several biomechanics classes as electives back in my undergrad, and in one assignment I remember comparing the energy outputs between the human and robot equivalents of different tasks, whether or not the robot was humanoid in how it was designed. The most impressive think that stuck with me is that humans are incredibly efficient , from an energy perspective, in anything we do, compared to machines. Every tim…

"Every time we delegate a task to a machine, we are using several orders of magnitude of energy to do the same thing."

Might this just be selection bias? I mean, if humans can't do a task efficiently, we're not going to do the comparison with a machine.

Some actions we do seem (to me) very inefficient when compared with machines. For example: grating carrots and brushing teeth.

Re: CrankGPT

#128
post #92

Earlier quoted context omitted.

They need to tackle two American problems at once and turn it into an exercise bike!

Addressed in the video, but now looks like we've got three problems.

Sorry, I watched it sans audio. I don't have twitter (or insta or fb) so their links default to muted on click. That said, it would still be good if we could address general comprehension, exercise, and private AI usage all with this one hand crankable device!

Re: CrankGPT

#129
post #9

My partner just got a rowing machine that offered "watts" as a unit of how hard you're going (like "calories" or "mph") and got me wondering if they made rowing machines that could slowly charge a battery, and how much I'd need to row to power one of them fancy newfangled M5 Max MacBooks answering prompts. All that to say, CrankGPT, I am your target demographic and if you don't respond to my request for a demo I'll b…

For reference, this is what 700W cycling looks like: https://www.youtube.com/watch?v=S4O5voOCqAQ

... at 1:03 he hits steady 700W. At 1:29 shows they kept increasing the incline at least to 40 degrees. Why not keep it at the same incline? . . .
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