It Only Takes a Minute to Make a Decision

My friend wrote on facebook today; 

'it only takes a minute to make a decision that will change the rest of your life, but it will take a lifetime to determine if that decision was the right one'

I can't decide if I agree with this or not.
Simple decisions maybe, but often we don't see how they alter our lives. The big ones however, for me, take a long time to decide. I mull over them for ages and often put them off. In the end I still spent ages thinking about them no matter what decision I made. 
Maybe this is just me, because I am indecisive and over think things but it I believe that in most cases, it takes longer than a minute to make a decision that will change the rest of your life.