bitcoin is great for you as a lifetime asset. if you invest bitcoin on this day, and you save it for your assets. probably in old age, you will earn from your bitcoin. you do not need to work in old age. because you can already enjoy the bitcoin results that you save at a young age. it is a good idea for you so you do not have to work in your old age. maybe bitcoin prices will be very high and your money doubled. you will smile in old age to see bitcoin provides an unexpected income.
I tend to disagree with this. It is profitable if you will hold it for like 5 years since it is still within our expectations that bitcoin still rocks. But if we will save it for retirement, it is very risky since we don't know what lies ahead. What if big war do happens? What if bitcoin will fall before we retire? All our efforts in saving will be lost. For me, its better to just know the possibly yearly on what will happen and if bitcoin still good, then continue holding it until the right time comes on when to sell it.