If you have much money but you aren't use it, it's better to invest it than save the money. So you can earn passive income from your idle money. It's really good imo.
For me saving is the best and that is just going to be done continuous so that in the future you have enough money for your daily needs. Saving is just like investing, you are getting ready for the future expenses that you might face. So for me saving is the one that a person must do. And in bitcoin saving is also applicable and a good choice.
Well, that is better but you cannot just save for the rest of your life, how would you enjoy if you are just saving. Investing is the only key to achieve financial success so we have the freedom to buy things we want and do what we want, we need to learn how to grow our money not only in saving.