[maxerickson]

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.

[specialist]

I'm warming up to the idea of voter efficiency.

And the various form of elections are absolutely more or less fair, eg FPTP vs Approval Voting.

[smelterdemon]

Efficiency gap is a decent objective metric of fairness.

[maxerickson]

It's not an algorithm for drawing districts though, it's a score computed for a given plan.

And it depends on selecting binary sides. How do you objectively deal with a popular moderate?