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by th0ma5 4830 days ago
What is stopping someone from looking at Bitcoin, changing something simple, and competing immediately?
3 comments

Nothing but getting people to use the competing currency. There are already numerous competitors trying to get momentum.
The same thing that's preventing someone from looking at Facebook, changing something simple, and competing immediately: nothing but network effects.
You might be interested in namecoin or litecoin. Unfortunately, those aren't worth much, because of the network effects driving bitcoin.