I have a slightly different opinion on real estate as it's not a guaranteed return as it depends on a lot of factors and I have seen some plots being idle from decades and useless so real estate is bit complicated one needs to do proper research before investing into it so 10x or 15x is not an easy feet to achieve. But agreed with gold as it has gained little over 2x in a decade. The problem lies with our mindset is that we expect quick profit or we are too carried away during the bear market we end up selling everything. I think we need to earn form mistake and give a chance to Bitcoin but the kind of prediction you have made about a whopping 8 digit seemed to be exaggerated for me but I may be wrong and short sighted.