Thanks for answering my points in detail! I think this is one of those domains where there's enough theory and practical considerations, that basically given the same set of constraints, there's generally one set of correct conclusions.

To be clear I'm not anti-float, as they have less surprising behavior than fixed point, and are much less fiddly, but I do have to note that f32 sits at that awkward spot where it's not accurate enough for a lot of numerical work, but stepping up to f64 carries a significant performance penalty on things like GPUs, and most DSPs don't really give you f64 hardware at full rate, if at all.

In contrast, 32 bit fixed point gives you 6 extra bits of precision, (IEEE754 mantissa should count as 26 bit), which can often be the saving grace.

For example, in video games, if you mandate a 0.01mm precision, with int32, you get a 40kmX40km area, which is plenty, and with float32, you have to divide every dimension by 64, which is not enough for even mid-sized maps, and you have to employ tricks or go straight to f64.