[fny]

A huge cultural shift. People in scientific computing speak Python and R.

Something would need to happen that makes Ruby far more attractive. Say performance parity with Crystal or Nim.

[mattnewton]

I think it’s more than that, Julia exists and adoption is still slow. Lua and torch were plenty fast and they were still replaced by pytorch. I think to compete with python you need at least a fraction of the de-facto corporate sponsorship for python in the ML space.