[wjfejort] A decade of independence referenda

An independence referendum, voting for a portion of a country to secede, should be repeated.  Only after 10 years of consecutive yesses should it count: this is roughly the length of a business cycle of recession and boom, so thwarts a populist from taking advantage of a temporary change in the economy to induce a permanent change in a country border.

Should all decisions be made this way?

Inspired by Catalonia's independence referendum.