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Just wait until the 22nd century. People will wonder how crazy we were to allow humans full control of a two tonne chunk of steel, where a lapse of concentration for a few seconds could easily kill themselves and others. And let’s not even begin to think about it being propelled by controlled ignition of highly flammable fluids...

We don't look back harshly at steam trains. They did the best they could with what they had. (If anything, there's strong nostalgia!)

Why do you think petrol will be different? Electric is only marginally viable now, more than a century after internal combustion's invention.

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