[xen2xen1]

1. Very, very small energy potential. 2. Infection concerns. 3. Much, much simpler ways to do it much more effectively. 4. That being said, implants are getting more and more common, it won't be too long before finger pricks are replaced by injected sensors, as the latter is already a deployed technology, for instance. 5. It will happen on some level, but weight loss / gain isn't just energy in and out.

[mozak1111]

My question is very hypothetical. I've read that human brain consumes about 400-500 calories a day on average. Imagine you could somehow attach a device to body that could burn another 1000 calories. [and probably convert it to heat - forget about burning your skin and infections for now]

Do we have that kind of interface? Can we power an implant using energy stored in fat cells?