The market cap of cryptocurrencies increased from 13 billion to 215 billion in a matter of 1 year. One of the biggest we have seen in any assets. The thing is, i think theres even more room for growth simply because the market cap is on a constant increase and if you were to just allocate 5% of gold's market cap into btc, 1 BITCOIN will be worth almost $100,000 approximately. Definitely more room for BTC and other alt coins to grow.
But one thing i realised is that, there can only be ONE CRYPTOCURRENCY leading the market. (Maybe its myopic of me but i think that is true because payment gateways would not want to accept more than 1 type of instrument/cryptocurrency and it feels like bitcoin is gonna continue dominating and perhaps, the best strategy is definitely to have 90% of your portfolio in BTC and another 10% for trading - thats my strategy)
We seen how BCC tried to fight with BTC but got rekted. Many have tried the same but the fact that BTC is more widely adopted than any single cryptocurrency gives it the NETWORK EFFECT. Its like facebook. The more people use it, the stronger it becomes. Someone can come up with something better than facebook but it will not overtake facebook easily simply because of NETWORK EFFECT. The type of strength that grows are more people adopts it.