If Bitcoin had a fixed value the majority wouldn't use it as their investment nor as a currency. Bitcoin could be used for the main reasons it was created for. People in need of an alternate currency for cross-border payments, free from any authority. Unbanking all of us to get a total control over our money. The idea of a cryptocurrency originated from anarchists.
And considering Bitcoin as an investment, sorry but there are better investments with your bank and much fewer risks.
I would rather prefer to earn a 6% per annum than to lose 400% in 2 months.
If Bitcoin was just intended to be a payment system why did Satoshi not just create something like Tether?
I posted in a discussion on this theme recently:
[Discussion]How to decentralize the price of the bitcoin? Self-moderated.It is my opinion that the decentralisation of money creation and supply is more important to Bitcoin than just being a trustless Visa or Paypal.
PS. This is an interesting subject but it is really difficult to discuss with all this signature spam. It is time to make all threads in Bitcoin Discussion self-moderated.