I can draw one conclusion from that suggestion, investing in Bitcoin is not limited to 60% or 100%, as long as you have the will and are able to do it, do it, all that you enjoy.
I'm not saying currently Bitcoin under $20k is the best to invest in, but investing is a good trait. who knows in the next few months it will drop again to $ 15k or who knows in the next few months it will increase to $ 100k which obviously we will never know that, take the history of our ancestors making long-term investments, even though they can't enjoy it, their children or grandchildren do.
Invest responsibility and only invest what you can afford to lose and money that you will not need for a couple of years because Bitcoin is not a quick rich scheme it is a long investment that should give people results if they are prepared to wait but most people are not prepared to wait and panic sell when they see a crash or we enter a bear market. There is no perfect time for investing into Bitcoin but there is a perfect investment which is Bitcoin.