This is very exciting. Unfortunately, AMD card won’t be able to benefit from this, making the GPU market ever more fragmented.

This might be very specific to the US. Here in Europe, SUVs aren’t nearly as prevalent, and trucks don’t drive on the same roads as cyclists do. In my experience, when I’m going 30km/h, I’m no longer a roadblock for cars.

However, bike paths aren’t designed for the kinds of speeds you’d get with that thing. I’m driving an e-bike, and I have to brake to a near standstill whenever I get to a bend in a bike path, because for some reason the planners think that bikes can turn on a dime. Also, in my city we have a lot of mixed bike/pedestrian paths, and pedestrians don’t appreciate it when you drive by with 30km/h within a few centimeters. I’ve also had people who froze like a deer in headlights when I approached.

There are a few YouTube videos out there where science communicators (one of them is Kyle Hill) do a few basic calculations on these projects and conclude that it’s impossible.

For example, the mirrors would need to be a swarm of satellites that are launched by hundreds of rockets every day for decades with no pauses.