My timeline is my lifetime. That's all I really have. Indefinite is a myth. People use children or future generations to delude themselves into thinking that is an extension, but it isnt. They could piss it all away, die, etc and you can't control that. I want freedom and prosperity in MY lifetime. That by extension should apply to people in the future. 

I think slow and steady up and right is the most sustainable, but I think staying too low for too long is a net negative for Bitcoin. Sure, you don't get ridiculously cheap sats, but that isn't what drives a free market. I also think the price increases encourage more people to come into the space.  That is what initially caught my attention. I stayed for a lot more than that.