I don't know how to start a poll, though I'd like one here.
Anyway, I wonder what do you think about the core bitcoin's crypto, SHA-256.
If you can make the same block, with your own transaction, while having the same sha256 hash - you basically beat the system and destroy all the currency (after using it for your own needs).
And we know it's theoretically possible - isn't it?
It's only a matter of a computer that is powerful enough to find different block, designed by us, with the same hash? Eventually cracking the crypto somehow, to make it so much easier.
So imagine: it is year 2112 and for one bitcoin you can rent a nice apartment for one month...
Do you think the she256 would still stand unbeatable?