Name that conjecture

[quasar987]

I'm looking for the name of the optimistic conjecture that, if I remember correctly, conjectures the existence of a certain kind of connection between every branch of mathematics.

I read about it in Singh's book on Fermat's last theorem. Fueled by the enthusiasm following the discovery of a proof of the Taniyama-Shimura conjecture connecting topology and number theory, this conjecture was made.

[quasar987]

What are other instance where two seemingly disconnected branches of mathematics intertwine as in the Taniyama-Shimura conjecture?

Can Perelman's proof of the Poincaré conjecture be said to connect differential equations to algebraic topology in this way?

[neutrino]

Langlands program?
http://www.amazon.com/gp/reader/0385493622/ref=sib_dp_srch_bod/103-9684326-7451839?v=search-inside&keywords=conjecture&go.x=0&go.y=0&go=Go%21#

[quasar987]

probably, thx

[mathwonk]

yes langlands.