Bitcoin seems to be a very promising idea. I like the idea of basing security on the assumption that the CPU power of honest participants outweighs that of the attacker. It is a very modern notion that exploits the power of the long tail.

Hal Finney

Bitcoin enables certain uses that are very unique. I think it offers possibilities that no other currency allows. For example the ability to spend a coin that only occurs when two separate parties agree to spend the coin; with a third party that couldn’t run away with the coin itself.

Pieter Wuille

Blockchain is the tech. Bitcoin is merely the first mainstream manifestation of its potential.

Marc Kenigsberg

Bitcoin was created to serve a highly political intent, a free and uncensored network where all can participate with equal access.

Amir Taaki

When I first heard about Bitcoin, I thought it was impossible. How can you have a purely digital currency? Can’t I just copy your hard drive and have your bitcoins? I didn’t understand how that could be done, and then I looked into it and it was brilliant.

Jeff Garzik

As the value goes up, heads start to swivel and skeptics begin to soften. Starting a new currency is easy, anyone can do it. The trick is getting people to accept it, because it is their use that gives the “money” value.

Adam B. Levine

At its core, bitcoin is a smart currency, designed by very forward-thinking engineers. It eliminates the need for banks, gets rid of credit card fees, currency exchange fees, money transfer fees, and reduces the need for lawyers in transitions… all good things.

Peter Diamandis

Bitcoin, and the ideas behind it, will be a disrupter to the traditional notions of currency. In the end, currency will be better for it.

Edmund C. Moy

The bitcoin world is this new ecosystem where it doesn’t cost that much to start a new bitcoin company, it doesn’t cost much to start owning bitcoin either, and it is a much more efficient way of moving money around the world.

Tim Draper