The main goal in life for the vast majority of individuals that comprise the human race is to get rich, and this is not because they are simply being greedy at this current point in time. Rather, it is due to the reason that being wealthy allows you to be really safe and secure in a world that is increasingly becoming unstable to the point where you can never be truly certain that you would end up remaining as safe as you truly want to be.
This is why you need to figure out a way to get in on the ground floor with something or the other that is going to become exceedingly valuable in the future but is currently dirt cheap simply because no one really knows about it as of yet. When you learn about smart hvac systems, you discover that smart homes are a great example of an investment that you can make right now which would pay off massively quite soon in the future. The main value of a smart home is how convenient it can be to live in, and pretty soon everyone is going to want to live in a smart home as it will just the normal type of home that people tend to buy.
Smart homes are not exactly cheap right now, but they are going to become even more expensive in the future as they receive higher demand. This means that if you were to buy a smart home right now, you could potentially sell it off in a decade or so for a truly massive amount of profit that you will be really grateful for all in all.