It's lame that you can only run `git bisect` against past commits.
An extension of `git bisect` that accepted future commits as arguments would be helpful to me right now, to track down exactly when and how I'll finally implement that feature I've been dreading.
IMO, physicists who are proponents of the block universe model of spacetime should put their money where their mouth is and submit a patch that would make this possible:
git bisect start
git bisect bad HEAD
# Mark the commit 100 commits *after* HEAD as "good"
git bisect good HEAD~-100
Drew Olbrich