[tocomment]

So if there is ever a bug discovered in the protocol or say the crytography methods get broken, or say we need more than 8 decimal places in the coins.

How do you get all members of a distributed system to upgrade? Would holders of bitcoins have to upgrade as well?

[EliRivers]

If we need more than 8 decimal places, we have a new currency of very similar nature with a more convenient base unit. By that point, the principle will have been proven.