>Anything that's "death soon or guaranteed cancer later" levels of energetic won't be lasting centuries because physics.
I don't know which "physics" you're referring to, but here are the half-lives of just the most common isotopes (out of OVER 100) released in Chernobyl.
iodine-131:
8.04 days
caesium-137:
30 years
strontium-90:
29.12 years
plutonium-241 (decays into Americium-241):
14.4 years
Americium-241:
430 years
Remember, these are HALF-LIFE numbers, meaning half the isotopes will still be radioactive after these time intervals.
Having shit magically go away by itself is such a massive plus.
Imagine how contaminated that part of the world would be if Chernobyl released equally dangerous (like remediation workers dying in the same amount of time) levels of thallium.
I don't know which "physics" you're referring to, but here are the half-lives of just the most common isotopes (out of OVER 100) released in Chernobyl.
iodine-131: 8.04 days
caesium-137: 30 years
strontium-90: 29.12 years
plutonium-241 (decays into Americium-241): 14.4 years
Americium-241: 430 years
Remember, these are HALF-LIFE numbers, meaning half the isotopes will still be radioactive after these time intervals.