* Invest More money or capital.
What do you mean by the statement buy more money or income?
Do you mean to say that one should buy more of an asset that could also be seen as money and can possibly be used to exchange goods or pay for services? If yes, then I think what you might be referring to is crypto currency, such as Bitcoin or any other generally accepted altcoin. Gold could also fit into that category. If that is the case,
Your outlined method could only make those who are already wealthy more wealthy, but for those who have only little capital, I don't think those options will ever be a good one for them. Investment is good, but one can't just pick out a few things that have your supposed features and invest in them without doing any proper research on how they will work, and all of that could make it a risky decision to make.
To me, your method could have been much more complete if you could add more tips on how those could be achieved, or better yet, map out a list of what you mean by "Buying money or capital," at least for the newbies to understand what you are pointing at, if you really know what you want to explain.