I don't tjink litecoin will replace bitcoin now or in the future. I think bitcoin Bitcoin was designed to be a digital equivalent of gold, and thus has an extremely limited supply, and is “mined” in a digital representation of gold mining. Litecoin is limited in supply, but not to the degree of Bitcoin. The designed ratio between BTC and LTC is 4:1, meaning that in the ultimate final count, there will be four litecoins for every one bitcoin.