There are differences over time, though. This drug repurposing, for instance, allows us to take drug candidates for other diseases and apply them to new areas.

There are differences over time, though. This drug repurposing, for instance, allows us to take drug candidates for other diseases and apply them to new areas. That is a fairly new approach when combined with ML in drug development, as in the past one would see brute force computation without repurposing. Repurposing gets better and better over time, as well, since there are more and more drugs on the lists that we've already run through a gamut of testing.