I, a two year long Bitcoin user, have experienced the issues with the current 10 minute block time. There has been endless discussion about making zero-confirmation transactions safe, but what if a lighter solution is better? Why not reduce the block time? Now, I understand that a block time of 30 seconds does nothing but damage, and will not propose that, but what about a block time of 2 minutes? That will speed up transactions by 500%, and will make the hour-long transaction something of the past.