Because of several ways of investing, bitcoin can be said to be the most guaranteed thing to invest in the long term in modern times like today. I think in the future we may not be able to work anymore because of our age and our diminishing stamina. Therefore. Maybe bitcoin can guarantee my life in the future. Now we can still work with maximum energy. And the results we can invest in bitcoin. So that besides we work, income also increases. It could be said like “we work to earn money, and money also works to increase or multiply our income.”  Different things with us saving our income without being invested. Then our income will be monotonous there without increasing at all.
This way when we are old and our energy is no longer able to earn income. Then from this bitcoin investment we can get income. This way we will not be too dizzy thinking about our future.