The 4-5 year reset, what do you think drives it?

I have long believed that the industry goes through a reboot/reset about every 4-5 years. It feels to me like there are cycles in the quality of performers who are recruited and the services they deliver. Just roughly, I'd guess we had major industry shifts around 1996, 2001, 2005, 2009, 2014, 2018, and 2022. I could be off on the exact years. But I'm curious if anyone has any theories on technology, economics, social media, cultural zietgiest, and other factors might have changed the quality of performers who entered the industry and the services they offered? Do more attractive women join or leave for any reason at any time? Based on recent trends, do you think we might be in for another reset/reboot around 2026/2027 and why?