NdFeB substitution, page-10

As commentators there say:
‘MIT settled this years ago - their extensive study showed there is no alternative to RE for any application that RE makes possible’.
And:
‘Making magnets is difficult, and from my very limited experience, there is no silver bullet. Instead, it involves a series of compromises between the magnet manufacturer and system designers. I agree we need to see magnetic properties for all new materials, either powder or final magnet, not theoretical properties.’
And:
‘We in p-m manufacturing managed to go from theory to 'bulk' Nd-Fe-B magnets in the mid-1980s - hitting the sweet spot of your Venn diagram. Thanks for the visual insight.’