Question 1 : No
Question 2: During the transition period if both are used at the same time only pre-fork coins though.
again, sorry for those questions. but i am neither a mathematician nor a programmer so some of the more technical aspects of BTC are to confusing for me..
2 questions:
- i keep the majority of my BTC on my trezor wallet. do i need to do anything in case BTC forks?
-No your coins will exist pre-and post fork its only new coins created after Bitcoin Core or XT separate that would be affected
- additionally, my my parents bought some BTC because i am told them too invest a little bit and they keep it in a armory wallet. do they need to do anything?
No as well their coins still exist pre and post fork
last question: some people in other threads mentioned that one could double their BTC if they switch to XT. is that correct? and if yes, is this doubling only for the people that switch at the beginning and people that don't switch immediately loose out on this opportunity? or will the amount of BTC double when the majority decide to fork? if i/we need to do something, how can someone using trezor and/or armory make this happend?
If some exchanges accept QT coins while others take XT coins
Your coins would be valid on both blockchains since they are before the forking occured and would trade with value until consensus is reached and one chain is abandoned.