this post was submitted on 25 Jun 2026
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[–] yakko@feddit.uk 18 points 21 hours ago (2 children)

Cold fusion. Green hydrogen. Hyper loop. Just off the top of my head.

[–] FirmDistribution@lemmy.world 30 points 21 hours ago (4 children)

Hyper Loop was an insane idea (in a bad way).

Motherfucker wanted to invent subway, but for cars, making cities even more dependent of cars.

[–] takeda@lemmy.dbzer0.com 1 points 1 hour ago

Actually not entirely true.

He was proposing transportation method similar to how the communication tubes are. Where vacuum would be used to transport capsules with people.

He knew it was bunk, so initially just published that idea and let anyone do it. His actual goal was to kill California's high speed rail, which he did.

Eventually he purchased Boring company and started building tunnel in Las Vegas and called that (as you called it, subway for cars) a hyper loop and pretend that it was the original idea.

[–] flyingSock@feddit.org 19 points 20 hours ago

hyperloop was very low air pressure subway tubes for high speed trains. Works for research tesring tracks impractical to infeasible for real world applications. But it apparently what killed high speed rail in california (because wait this will be better)

The cars in tubes thing was a seperate stupid idea.

[–] officermike@lemmy.world 16 points 20 hours ago

I don't know that he really wanted to fully execute on Hyperloop so much as build hype (and Tesla stock price) around the idea while sabotaging funding for California's high speed rail project. But yes, end goal to keep people buying his cars.

[–] yakko@feddit.uk 6 points 21 hours ago

Average massively shitty car CEO idea

[–] encelado748@feddit.org 10 points 20 hours ago (1 children)

Cold fusion is a scam, not a bad idea. There is no scientific basis for that. Is as bad as “infinite energy engine”.

[–] yakko@feddit.uk 2 points 20 hours ago (1 children)

All of the things I mentioned are scams lol

[–] encelado748@feddit.org 4 points 19 hours ago (1 children)

Green hydrogen is water electrolysis with solar power, not scam, it works, it is just a question of making it economically viable. Hyperloop is just stupid, but within the realm of possible. Cold fusion is the only scam here.

[–] yakko@feddit.uk 1 points 17 hours ago (1 children)

The scam isn't always "fake tech" so much as "distracting from better alternatives for monetary reasons". Even if hyperloop worked perfectly, they're not going to build it, because not building high speed rail was always the point.

[–] encelado748@feddit.org 1 points 17 hours ago (1 children)

Your definition of “scam” is not what other human being use. Causes unnecessary back and forth.

[–] yakko@feddit.uk 0 points 17 hours ago (1 children)