This picture is showing how funny can be crypto maximalists. One bitcoin is not growing like this and this is very volatile for real world use.
Speculation is the main use case
This is clearly not a maximalist point of view. This is a prediction, as well as a comparison. If you look thoroughly, as time goes on, fiat money is starting to decrease its value (cause of inflation), goods and services are getting more and more expensive. While Bitcoin doesn't give a crap, why(?) easy(!) because it's decentralized it has nothing to do with our so-called "economy", and guess what it's volatile. It is an independent currency (asset, if you will) that even the price can only be affected internally and does not have any correlation to goods or services.
I think being volatile and decentralized is its strong suit.
it is still best to use our traditional currency because they cost less in overall process.
For now at least. Bitcoin is not really being treated as a
fairly usable currency, most of the users treat it more than that. That's why I guess when it comes to its usability it doesn't really live up to its expectations, but I'm sure we're currently on the way there.