Ethereum. That's what the other one is called.
My buddy has been an investor since 2008. I asked him where's Bitcoin's ceiling and this was his response:
"Well, futures begin to get offered on the 10th and 18th of this month. The world gold market cap is 7.8 trillion and that is difficult to transfer to other parties and not readily acceptable payment for anything. The world is worth $370 trillion (+) GWP is $78 trillion. So can bitcoin be worth 1% of either of those? Further, it's still the one way to purchase any of the other 1,100+ alt coins. Not so much a currency as a transaction vehicle a la MasterCard and Western Union. Another fact about value: 1 Satoshi still doesn't equal $0.01 USD. $0.01USD = 72 Satoshi. As to its validation, I think it's been validated to the point it was created to be. The cynic in me says enough people want to see Mcafee eat his d!ck, so they'd keep it just under $1 million per coin by 2020. There are also enough big money folks that want more money. To sink the market doesn't accomplish that for them. Also, the last coin won't be mined out until 2040 and enough people globally see the inability to make (mine) more a welcome trend. Remember, you don't have to invest in bitcoin per coin...you can buy any fraction thereof, allowing anyone to get some skin in the game at whatever rate. Bitcoin doubles, your $100 investment does the same."