Required for what, the self driving cars that don't exist yet? Radar and computer vision is simply a separate approach, not a wrong one. Tesla is as much an expert in the field as anyone, given that, you know, they have the best self driving commercial product by far.
>"Required for what, the self driving cars that don't exist yet?"
Required for Level 5 automation. Tesla claims to be selling the required hardware, waiting only on the software and legislation allowing it. All other players in this field are focusing on a combination of cameras, radar and LIDAR.
Since LIDAR is expensive and the self-driving hype is real, Tesla have a strong short term financial incentive to forgo the former while claiming to sell the later. Combine that with virtually every other expert in the field saying they're full of BS, and I think the picture becomes crystal clear. Elon covers for himself by promoting conspiracy theories about grand industry-wide plots to keep an underdog down, and that has worked very well for him so far. But like most conspiracy theories, this is one you should think critically about.
I work for an automotive tech company and have installed an L2 self driving system into my friends Camry, I don't think you've thought critically about this. LIDAR is currently a prohibitively expensive technology that provides a point map of the surrounding area. The LIDAR that Waymo uses is nearly as expensive as the car itself. This same point map can be done with computer vision/cameras, and good software. There are many other "experts" that think this is equally viable e.g. George Hotz at Comma AI or Anthony Levandowski at Pronto.
I am not opposed to LIDAR. I just think it is unnecessary and that computer vision is likely to get good enough before LIDAR gets cheap enough.
The last time I looked into it (which was admittedly a few months ago) Comma.ai was by their own admission a Level 2 system, and a somewhat sketchy one at that. While it's obviously really cool, it's a long way off from Level 5.
LIDAR currently being very expensive (and a bit bulky) is obviously the reason Tesla hasn't put LIDAR in their cars. I don't really fault them for that, I fault them for their deceptive advertising. The LIDAR industry has not yet progressed to the point where it makes sense to bring a car to market with hardware ready for Level 5 automation, so Tesla should stop claiming they've done so.
Assuming the current Level 5 automation hype doesn't fizzle then smoulder for decades like the AI craze of the 60s, then it's success will coincide with rapid advances in size and price of LIDAR.
