No one can predict what exactly will happen in the future. In the event of a nuclear war, they can turn off electricity and the Internet, no currency will have value.
That is so true, and thats why i own a safe at home stocked with gold, silver and canned food haha!
Diversify, never believe in just one thing as nobody can ever now 
Bitcoin can be called a bubble, because its price will depend on acceptance. It's now worth more than it should be because people believe in it, but it all could change within weeks.
Yea thats true, gotta keep it to myself.=) I wouldnt call myself a prepper i actually try to have a positive outlook on the world but it just feels best having some food and such for emergencies, but theres food for like a month so not super serious about that, haha!
Yes cryptocurrency value at the moment really is speculative. What is your opinion on fiat money? Do you believe it could exist in a bubble, or do you believe it can only be the victim of over speculation, and not a "true bubble"? I find discussing the diffrences between fiat and crypto really exciting and love to hear everybodys opinion.