>>882475>to 5.10that should be 5.9 amigo. that's why .10+ get letters, too; in the process of adding them they got an expanded format.
>That was thought to be the pinnacle of what humans could reliably ascend by their own power. You can already scend routes that your grandfather's peers would have thought impossible.false. it was just a flawed system. yds was developed in the 1930s, but people were doing 5.10s by the teens and '20s, and 5.11c went down in 1934 (fucking barefoot!)
>https://en.wikipedia.org/wiki/History_of_rock_climbing>http://web.stanford.edu/~clint/yos/hard.htm 