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@Danny Thompson, @David Wiernicki

@Danny Thompson

"Vectrix maxi"

Good lord. An American who doesn't have a 150 mile daily commute and can survive without air conditioning. I'm shocked!

"Hydrogen fuel cell? About as likely as LPG that got absolutely nowhere. "

I'd agree except for 1 thing. The very quick re-filling of an LH2 or LPG tank. I'd recommend looking at Voller (who got Kw size H2 & LPG fuel cells going) but they have ceased trading (http://www.voller-energy.com) and are looking for funding or a buyer, which sort of makes your point.. However most countries have a gas distro network and liquid or (liquefied gas) fuels do carry a lot of energy. Of them all LH2 is the biggest pig to make and store. It's true it *can* be derived by electrolysis of water. Its *very* unlikely to be in commercial use. But the whole stick-a-nozzle-into-a-tank *feels* like the right thing to do to car drivers. Even if the tank is at 5000psi (or -450F for LH2).

Change is inevitable in this area. After it takes place people will say the direction of that change was inevitable as well. Batteries, flywheels, LPG, H2, Methanol, lifetime nuclear battery (not a joke). I doubt it's ever that obvious while it's happening.

@David Wiernicki

80hp on a bike at the right (6.8sec) moment could make quite a difference.

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