The Insider wrote:
For all of you (coughRojocough) who are screaming that the new "super shoes" are the reason for all of the fast times, have any of you considered the possibility that evolution combined with unique circumstances are the real drivers. 1st, it's an Olympic year, which means everyone is more dedicated and disciplined in the lead up to the Olympics/Trials. 2nd, it's the second Olympic year. People were already into their Olympic preparations when they were postponed last year, so they get to build off of that. 3rd, the COVID year allowed everyone to stay home and train without having to worry about travelling for races and preparing for championships. 4th, time trials. We're at a unique time when time trials are perfectly set up all over the U.S. This is why scores of Americans are running so much faster than previously, vs the rest of the world only having a few outliers running faster.
Take all of that and combine it with the new shoes, which help slightly.
For those who think I'm wrong and it's all the shoes and not a combination of evolution combined with unique circumstances, take a look at the below list of events that have taken place recently, none of which have anything to do with shoes:
Dililah Muhammed and Sydney McLaughin 400m Hurdles world records
Athing Mu 400m and 800m collegiate records
Armando Duplantis rewriting the pole vault record books
Grant Holloway 60m Hurdles WR
Ryan Crouser indoor Shot Put WR
Ryan Crouser, Joe Kovacs, Tom Walsh have all thrown over 75ft in the Shot Put. Only admitted steroid user Randy Barnes has thrown further.
Shelby Hulihan 14:23 and 3:54 in old shoes
Hugues Fabrice Zango men's indoor Triple Jump WR
Yulimar Rojas women's indoor Triple Jump WR
Tori Franklin women's indoor Triple Jump AR
10.12 100m doesn't make NCAA
Shelly Ann Frasier Price 10.63
Karsten Warholm, Abderrahman Samba, Rai Benjamin have all run sub 47 for 400m Hurdles
Michael Norman, a 400m runner, running 9.86 in the 100m