I think the concentration of content like this is a crucial feature of HN I know and love. You have shown some rare examples of topics I am interested in up to

I think the concentration of content like this is a crucial feature of HN I know and love. You have shown some rare examples of topics I am interested in up to the last day of my life. Most of cool things becomes less interesting while age is going on, but I can not imagine any healthy-minded person who is not interesting in enhancing some cognitive functions.