But he could pay for it with ETcoin. Lol
Supply based on how many planets we are on, super reward for first contact, start beeming the premine into space to start the galatiac trade, presale to new species, humans are devs, so we keep 50% of supply. Dump it all when we get out there in the stars. The edge of the observable universe is the limit here lol.
In all seriousness, a SETI coin would be neat, but would be worthless once we found actual aliens, as the search would be over.
Would foldingcoin and curecoin be useless if folding assisted in the finding of a cure for a serious disease? I doubt it! It'd only bring on more popularity and help gather more interest for the hunt of more cures for other diseases. Likewise, confirming alien intelligence through SETI would attract immersive interest on the program and also accelerate the hunt for tracking the beings while searching for more.