What makes merging in DVCS easy?

Question

I read at Joel on Software:

With distributed version control, the distributed part is actually not the most interesting part.

The inte

Answer 1

As a historical note, the now-archaic PRCS system also knows about common ancestors and can merge efficiently, though it wasn't distributed (it was built on top of RCS files!). It meant that it could be effectively migrated to git while retain history, however.