Floating point numbers would be AMAZING to have on the atproto for scientific data - a huge amount of data is floating point, and not being able to have them here adds a lot of complexity to posting things.
This is a great proposal from @vmx.cx that demonstrates how they could be added:
Emily Hunt
This has been a long time in the making: a proposal on adding floats support to ATProto vmx.cx/cgi-bin/blog...
If you prefer code or a demo, you can jump right into the proof of concept: github.com/vmx/floats-o...