MIT SPARC approach we did cover, it is certainly an interesting venue to be investigated, even if it fails to live up to the hype
https://focusfusion.org/the-real-mit-fusion-announcement/
there has been some discussion in reddit about it
A somewhat critical look at the MIT announcement
byu/energyaware infusion
However Saphire is a different matter as I consider it non-scientific due to lack of scientific publications, evidence of fusion reactions and (pseudo)religious claims. While I would love to have more and active discussion, due to this reason this thread goes to the ZPM section.