Anyone else following the Maddie Lilly interviews with Robert Drysdale on YT about the evolution of the BJJ rulesets?

By /u/FuguSandwich

He covers the drastic changes from the 1954 ruleset to the 1967 ruleset to the 1975 ruleset and how what we think of as BJJ today (guard focused ground grappling) traces to the latter? submitted by /u/FuguSandwich…