ICML2008/Actively Learning Level-Sets of Composite Functions

cosmological constants have consequences for 3 different phenomena, each of which has a different model (naturally!) and different data.
as a result, the confidence region for the cosmological constants is much smaller.

The resulting increase in confidence will presumably predict individual phenomena too. Each phenomenon is relevant to the others.

I find this interesting philosophically (see: inter-theory links, unified theory).