The market cap today is just over 100 billion, for the market cap of cryptos to reach 5 trillion is a way long journey. If crypto remains in the current state forever, a 5 Trillion cap could be achievable in 10 years but thats a fantasy. As soon as the crypto market will be regulated by governments of different countries the scenario will change entirely. Its till 2021 we have the opportunity to make millions. Keep some bitcoins for long term, look at investing and trading with ETH, Litecoin, Ripple, ETC, DASH and a few more electives from the top 10 on coinmarketcap and keep making bitcoins and occasionally sell some to keep your fiat secured. If BTC reaches $100,000, not sure how much you hold but I will be a billionaire! Lol