I agree with diversified investments, but you must be able to control it. If you are very good at math, you can choose to diversify your investment. This is very sensible. But if you have a lot of money then you only need to invest in Bitcoin.
theres no need to learn math or to be good at math just because you wanted to try to diversify your investments . anyone can do it becuase it is just a simple divide . like for example i will diversify my money to eth 50 percent and the other 50 percent goes to bitcoin . so if i have 100 usd on my pocket , i will just buy the 50 usd for eth and other 50 usd is for btc , as simple as that .
But if you have a lot of money then you only need to invest in Bitcoin.
i think its the opposite . if you have a lot of money then it is easy for you to diversify it to some different kind of cryptos but if ever you only have a sufficient amount of cash , then much better if you can just foccus it on some trusted coins like btc or eth .