What do you think about Personal Holding Companies?

My thesis is that we live in an age where almost everything is becoming investable – and that's a great thing! But it can be incredibly hard to select and compare different investment ideas in terms of profitability, risk and effort. I'm noticing that the majority of financial blogs and newsletters are focusing strictly on crypto/stocks trading and investing, leaving behind lots of interesting stuff like alts, private equity, private debt, boring businesses, digital assets and so on. I've just a newsletter on this topic. My vision is a community for modern/entrepreneurial investors with research, analysis and opportunities for whoever is interested in building a personal holding company. What do you think? I leave the About Page link below if someone's interested in joining and giving me feedback. https://goinvesting.substack.com/about See you!