[lmm]

> For all of the abstractions OCaml and Java bring, there is an often large performance penalty to pay, and when you're pass producing an embedded product, that's money you're leaving on the table because you're asking for more compute power than you actually need to get the job done.

In my experience the performance differences are often grossly overestimated (particularly if you compare equivalent development times). And increased development time or higher defect rates aren't free. What you say is true for a particular niche, but I think that niche is pretty narrow (and in that niche I think the risks of Rust, while real, are smaller than the risks of C++).