Blackbelt

Hey friends :)

I am blackelt in brazilian jiu jitsu but in cryptocurrenzy I am white belt. Total beginner how wants to learn. All the advices are needed.
One question, Are cryptocerrency change world or are its bubble in the end? Arguments...please
Second question, What do you think about investing in gold or silver?

Oh yeah I'm from Finland, which is home to Santa Claus