[VK538FY]

I appreciate your suggestions but would really need to see some simulations to digest the potential effects. Not that my opinion counts for much but it's always good to suggest alternatives when one criticizes. That said, the duopoly isn't always so bad historically. Many cases of individual candidates who broke party lines or walked the fine line. It depends to a great degree on party discipline or the lack thereof.

[culi]

you're probably asking for historical examples. Tbh I lack the knowledge of the specific politics of Montréal to think of the best comparisons, but if you want a more abstract toy to play around with the large variety of different voting systems available, I've made a toy just for that:

https://votevote.page/

sorry for the self-plug

[sph]

You should do a Show HN for this actually

[culi]

awh thanks :)

Maybe I will, but I've had this update pending (see preview here[0]) that adds some major algorithms that any self-respecting voting theory nerd would expect to see. I started my first software job right as I was wrapping that up though and never fully got through with it. Maybe this winter break I'll have time tho... I'd like to have that update out before sharing it more loudly

[0]: https://dev--votevote.netlify.app/

[aragilar]

You could look at Australia (which has multiple "rural" parties), and which uses RCV (called preferential voting here).