If it is "nothing" then you should be able to explain why

Do you think that Texas being somewhere between 5~ 7 years late is OK please explain why. Hard to know how long since they still cannot start construction.
Do you think FeN has no chance to be a serious threat to FeNdB. Please explain why,. Also explain why corporations Like GM, as well as USG have put money into Niron if you do not think FeN has potential.

Here is another Article on FeN and Niron what do you know that the author of this just does not understand? If you read it Higher performance is explained very clearly FeN has a field of 2.4 Teslaas. FeNdB 1.6 Teslaas

First I do understand the problems behind FeN We will have to see what products come out next year Like audio speakers and earbuds. Also you point out one detractor and talk about him as if his say is final. Both GM and USG have put money into NIRON I doubt either does it on a whim. I will agree GM has put money into competing techs to cover all bases. They have a major investment in MPs metals and magnets facility. I do not know which will win. I read fairly carefully John Ormans stuff you posted but I did not see where he said "Please define what "High Performance means." The following article quite clearly says high performance for FeN is 2.4 Teslaas vs FeNdB of 1.6 Teslaas field strength. Also says max temp is higher than even Dy treated magnets. You can read it if you want numbers. This gives a few of the problems as well biggest, in my opinion, is demagnetization in strong fields. FeNdB has same problem but not nearly as bad.
NewMade-in-America Magnet Could Make Cheaper, Greener EV Motors
Web site Niron Magnetics



Yes lower efficiency can double the heat. Ie a 94% efficient motor has twice the heat of a 97% motor. Copper can operate at 4 X the temperature of FeNdB even with Dy added. Also because Field strength in induction Moters can be many times the Field strength of FeNdB which has a max of 1.6 Teslaas Gaps for cooling can be increased if needed. If you look at even 1000HP induction motors they have limited internal cooling most are colled by fan forced air over fins external to the case. There is internal movement of air as well but this not the largest colling area. Put you hand on the case of any induction motor running near full load and you will quickly see how much heat is in the case. Cooling limits total HP of Nd motors. A few years ago Max Hp was about 100 HP today it is close to 400HP. But notice all high performance EVs have 2 to 4 motors to obtain the HP they want. Tesla because of the HP restraints did not use PM motors till 2017 and kept an induction motor in its high performance roadster till about 2020.

I will agree that PM motors will never disappear. They will not be totally replaced. My only argument is with those who say there is no replacement for REE in motors. MB has an experimental Zero REE motor in a couple of Very high end roadsters for testing only. Unfortunately They have given no hints as to what the motor tech is. .

So I agree both these options have draw backs but so do every other technology including FeNdB it is just a case of which is the best solution. if China was going to sell everything the rest of world needed at a fair price then I say why change. Does not look like what they will do.

Are my draw backs serious. Maybe but look back just 15 years at all the problems with ND perm magnets,. Cooling and max HP were big ones. Many have been overcome others have not. We will just have to wait and see which become road blocks and which are fixed with time.

The only big mistake is not wanting to stay current with change.