Effective at what? One potential goal of gerrymandering is packing your opponents into as few districts as possible.
Which is ultimately the problem with algorithmic approaches; "fair" isn't an objective measure.
Which is ultimately the problem with algorithmic approaches; "fair" isn't an objective measure.
And the various form of elections are absolutely more or less fair, eg FPTP vs Approval Voting.
And it depends on selecting binary sides. How do you objectively deal with a popular moderate?