I normally try to avoid posting a comment that echoes others, but I will make an exception this time.
I am old enough to remember issue after issue in the 90s of Popular Science, Popular Mechanics, Scientific American, and other magazines wherein there’d be a breakthrough that promised to revolutionize the world. Then, you’d read news off Yahoo or Fark that would describe a young wiz kid’s new invention. Nothing happened. Ever.
Due to this inevitable hype train that lacks any kind of stopping ability, paranoid types would start thinking that the oil industry must be involved in stopping them. Not a bad assumption given things that megacorps have done in the past, but it is generally bad policy to invent large nefarious schemes with zero evidence.
As a younger guy, I was always intrigued and would then start drawing and writing about the world to come! It was so enjoyable and the crushing disappointment would come over the months as nothing more was heard or seen. I awoke to the reality that people run risk calculations on business, on machinery, on changes, and if the financials aren’t viable, things don’t happen. Additionally, young inventors are often seduced by patent purchase offers. Then if megacorp X has a bad culture that can’t produce a truly new product… it dies. Beyond all of those challenges, you have regulators to convince as well. Of course, here in the good ol’ USA, regulators don’t seem to care toooooo much about safety. Paper thin cars with zero crumple zones? okay. SUVs without doors, roofs, accurate steering? okay. Trucks and SUVs with very high rollover potential? sure. Non-lockable differentials? absolutely. Massive lithium batteries that catch fire somewhat easily? Why not.
Note, I am actually fairly libertarian and don’t support regulation in general, but I hear very frequently that automobile regulation is big reason for innovation being stifled, and in this case I do not see how that could be even remotely possible.