I am aware that this is not a question that has just an answer, but I would like to ask the community, what range would you say is reasonable for this purpose. e.g. from case 1: -10% anual return to 5: 50% anual return (just as example, not what I am using now).
What range would you use and why?
The bull we are experiencing today, I'm pretty sure no body would have believed we will be having it this early if been told probably the first quay of last year. And as such, I'm pretty much sure the future of Bitcoin is still very unclear on how far it's price could skyrocket high or low, depending on the market demands that might spike such reaction. Hence, I will love to say that having a 3% annual interest rate on Bitcoin investment wouldn't be a bad idea, knowing fully well it's value is likely to increase or decrease.