Re: [10-13-2018] Is 2018 a waste if if bitcoin prices don’t recover?
always remember: you lost nothing until you cash out 
That isn't true. If bitcoin crashes to zero but you're still holding your coins would this still apply? If you invest money in something and it loses value then you've lost money, regardless of whether you sell the asset or not. Sure you can keep on holding it and hope you gain a return on investment evntually but doing so doesn't mean you've lost nothing until you do.
If world economy crashes to zero, we lose everything anyway. But will it? I'm concerned that bitcoin (same as any other currency, USD or EUR) is a bubble and it will definitely burst one day. But later on, it will go up again and it will be a pleasant and steady way up. Same as oil did. There's actually the opinion that I personally love and support by Jeremy Oles. BTC can go down to $2-3k so the "big fish" can buy it really cheap and kick out enthusiasts out of the market. So, big money can enter the market at a good price. Only after that, bitcoin will be steadily pushed up.
Check the full article if you like
https://coinatory.com/2018/06/14/when-will-bitcoin-change-its-trend/