Don’t over-filter.

The default assump­tion should be that the option is fea­si­ble unless there is evi­dence to the con­trary. If assess­ment of fea­si­bil­i­ty is made a trans­par­ent and par­tic­i­pa­to­ry process, it fre­quent­ly turns out that what seems infea­si­ble to one per­son is emi­nent­ly pos­si­ble to another.