Smart people can see the future.  When they learned of Bitcoin and its technology, the appeal to the public and government, they can easily see the potential of this Bitcoin.  And then they move their fund and invest on it since they believe it is always best to invest on a first mover as bitcoin is the first mover to decentralized blockchain.
[/quote ]Yes, now people don't know enough about it, and when more people know it, it's worth more

My confidence level in Bitcoin is definitely high. I normally invest with my spare money, the money I can afford to lose. I feel that Bitcoin value is going to be as high as the sky, there is no limits to its growth.

You can work for it or buy what you can afford instead of selling your house. Nobody can tell you that you can buy it back after 3 years.

that is not a good idea to sell all your assets even your house. investment in bitcoin takes time to make profit what would you do if all your money is in bitcoin? even though you believe it always remember that there is always a great risk in bitcoin so invest only what can you afford to lose.