Any YouTube video title slide that includes an image of Elon Musk, uses the words "insane" or "shock", or does a graphic overlay on an image of a physical device, is likely pile of crap. This has the whole trifecta, so it's undoubtedly not worth the time to watch.
Now, as for specific technology:
Here's a rational article, which can be found with brucedp5's suggested search:
Electrek: Tesla is going (back) to EV motors with no rare earth elements
Note that it does not include the words "insane" or "shock" anywhere.
Now, as for specific technology:
There are lots of permanent magnets without rare earths - they just don't generally perform well enough for EVs. Anything billing this as "insane" or "shocking" is nonsense.
Here's a rational article, which can be found with brucedp5's suggested search:
Electrek: Tesla is going (back) to EV motors with no rare earth elements
Note that it does not include the words "insane" or "shock" anywhere.
