User experience: Python vs R, PyMC vs Stan, PyTensor vs JAX

[kforeman]

@bob-carpenter

If JAX had existed when we started (2010), we probably would have used that. The big issue is R integration—the stats community is still largely weddd to R. I, on the other hand, have moved to Python.

Sorry to potentially start another digression, but curious why you didn’t build on top of CppAD at the time?