Distilling freeform natural laws from experimental data
 There critical step was to use partial derivatives to evaluate the search for invariants. Even yet, with a 4D data set the search for natural laws took ~ 30 hours.
 Then again, how long did it take humans to figure out these invariants? (Went about it in a decidedly different way..)
 Further, how long did it take for biology to discover similar invariants?
 They claim elsewhere that the same algorithm has been applied to biological data  a metabolic pathway  with some success.
 Of course evolution had to explore a much larger space  proteins and reculatory pathways, not simpler mathematical expressions / linkages.
