There’s two main investment strategies that developed through the years that can be split into:
Soros + Buffett
Most investors do some combination of the strategies as they both work well.
I was more of a Buffett man: Choose with care, Buy and hold. Logic and reason. Stay aloof.
But I also had bits of Soros too, which is more quantum theory like: You’re part of the system you’re using and your every action influences change, so influence well. Know your emotions and observe the emotions of others as the market is not rational but instead driven by emotion.
Both have their place and a mix of the two is solid and wise.