There really is no difference within this context. If I have a lemonade stand and would like to deliver lemonade by drone I would be subject to the same regulations as Amazon. Just as I'd be subject to health department regulations like Applebee's is.

Steerriikke!

Or Hawking. I wonder what his FitBit readings would look like.

So for $70,000 why would I want to buy this car versus a Tesla Model S? Or two Chevy Volts?

Thanks you for weighing in, Elon. I think I can give you some answers....

1) The Toyota is cheaper.

2) It can be refilled quickly.

3) GM, Ford, Honda, Toyota, (and even Hyundai, for fuck's sake) don't agree with you.

Why do you have to wait for the charge, if you can just replace the battery?

Spoken like a true cell phone user. Who is going to keep thousands of fully charged 1000lb batteries all around the nation so you can visit your site of the day?

You don't think you're gonna pay for that?

I don't assume they're going to put the fuel tanks on the roof of the car?

Why would you think that that would even be a good idea? It would actually be much safer than mounting a gas tank up there (and much lighter)

But Honda, Hyundai and Toyota, (among others) have not found it necessary.

If there was a high school science fair project that demonstrated some sort of free energy, I would definitely sit up and take notice. If only to debunk it.

But who said anything about Free energy? It could be anything generated by a Bunsen burner or pond pump. In the real world, it could be anything from Germany's solar plants, or Iceland's abundant hydroelectric or geothermal power.

I don't see where you get "Free energy" from that.

We don't ever need to get beyond 'cost effective' - that would be fine. If we could get to 'ubiquitous', it could be a world saver.

It is a bit fanciful, but every part of it would be demonstrable at a high school science fair.

Electrolysis may not be the most efficient way, but neither is carrying an extra 1,000lbs worth of batteries to haul around your electricity - as a Tesla does (comparision: Tesla Model S vs. Honda FCX Clarity).

But efficiency may not be that much of an issue. When you think about it, solar power can never be very efficient because the vast majority of solar power never comes anywhere remotely near earth. Yet solar power can still have a significant impact.

Why, let's just take some of Germany's new 22GW solar capabilities and merge them with the hydrogen zeppelin tech they had in the 1930s. These could now be piloted automatically by GPS (a heck of a lot easier than a Google driverless car). The hydrogen already on board could power the craft all the way to a delivery point where the hydrogen (providing a few thousand tankfuls of H2) could be replaced with helium for the trip back.

Of course, by this means of delivery, production wouldn't be limited to sunny Germany, but could utilize all sorts of energy of the sort that's available in places like Iceland. Hydrogen can float itself anywhere in the world. You can't do that with a battery.

This is a common, but knee-jerk reaction. But as bad as it looked, I think many would be surprised to learn that most of the people aboard the Hindenburg survived the disaster despite it being engulfed in flames hundreds of feet off the ground.

Imagine if it were filled with gasoline fumes. Everyone on board would've been dead as well as most of the people on the ground.

Toyota was fired bullets at its pressurized tanks. Regular bullets just bounced. 50 cal rounds too chunks out. It took an armor piercing round to penetrate the tank. When that happened, the hydrogen simply leaked out. And, being lighter than air, it just rose up into the atmosphere instead of pooling on the ground.

The future. Perhaps before you can get a $20K Tesla.

Unless you'll settle for a forklift. These are starting to make big inroads on battery powered forklifts in warehouses.

HFC Cars *are* electric cars. Hydrogen *can* come from fossil fuels, but can also come from water, or other sources.

What does 22GW look like? If all of the collectors and ancillary equipment were in the same place, how many acres would the facility be?

Behold the power of Angela Merkel's sunny disposition.