Cancer
Is not a single disease.
It is hundreds of different related diseases
Many cures are known, for specific cancers.
DNA testing of cancer tumors is used to figure out
Which drugs or treatments it will respond to.
Many household chemicals cause cancer.
Eliminating these would be better than cures, because you would not get sick.
Strengthening your immune system would be better than cures.
Because you would not get sick.
A billion dollar reward is a dumb idea
Because it will encourage people to fight in the courts for a share of the prize.
This will reduce the amount of real cancer research going on.
If the problem is corrupt pharma
The fix the problem
Clean up the corruption in pharma.
Put the criminals in jail, not in the boardroom.
A billion dollar reward protects the criminals.