As I remember Rob has a full head of hair. So he is astute, but he’s like the Bob Lazar of male pattern baldness. He has his carbon dioxide theory, his mitochondrial energy theory & this whole scalp massage business. I’ve tried all of them & concluded as far as scalp massage.. I’ve seen the videos, I bought a growband, I’ve has several electric models, I’ve done it by hand.. After few months I sold them all. For scalp massage I just use a scalp brush I got from Virtue shampoo & it works better than the rest. Microneedling makes more sense & you can do it yourself. It’s no panacea however, but I do it several times a week. I wouldn’t pay much attention to people with full heads of hair trying to lecture on male pattern baldness.