Crypto prices if our economy tanks?

Okay I love the whole crypto thing but I am alittle worried that if the economy tanks like 2008 we will loose most or in some cases all of our crypto currencies... A crash is very likely to hit that will be worse than 2008 in 2018 sometime. I’m not a doom and gloom kind of guy but there are too many warning signs on the economy to not address it.

Please tell me what you think!