Investing on bitcoin as well upon real estate is completely time dependent. Because, when years pass the value of the property increases. While at the same the locality is highly concerned. With cryptocurrency with time the increasing demand leads to price increase, still it is completely unpredictable. One who has got patience can profit big from bitcoin investments.
Many of comments here are totally wrong, yours is not totally wrong. You say its completely time dependent, if you think that`s the only thing than you don`t know much. Tell me please can you start with investing in real estates with 1000 dollars? If you can`t, tell me what you think how much money do you need for start!?
Some things depend on time, some just on being in the right place in the right moment. Investment as an investment can be short, mid, long term, you can have luck to buy something cheap and sell for huge profit in days, some things can be waited much longer, but before any profit you need to know how much you have, how much can you risk, how much you need to work for it. With real estates you need to go around, to look for it, to make papers, tons of papers, than you need to make many other arrangements about so many things with so many people, with crypto you sit on your money and you wait, you dont have to meet other people, to spend time on things you dont like, can you compare that?