I don't think we need to get too crazy with liquid cooling and everything.
Remember, we want something relatively simple and inexpensive that many people would be able to build themselves.
All this other stuff is a lot of fun to think about though.
I do like the "modular-power" concept though. Since the controller is already seperate "smart" and "powerful" components, it seems well suited to some sort of modular power system.
It would be pretty slick to build one of the power units to run your can on, and then add another one as time and money allow for increased power.
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