The previous commit clipped log_mass's negative tail (undershooting
_EPS made mass go slightly negative). The mirror case also crashes
rollout: a sufficiently large raw predicted log_mass overflows
exp() in float32, giving mass = inf, which then fails the same
downstream log_transform finiteness check when that mass is fed back
in as conditioning for a further step. Bound the upper tail too, at a
value comfortably below float32's overflow point.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
lars
98b09d2b4b