2018, no super shoes in my view (4% are not in the league of the Next % of Alphafly's in my view). Kipchoge ran 2:01:39. He did not collapse as you falsely claim that people were doing before super shoes.
Better argument:
2014, no super shoes (well, Adidas boost flats, which were "fast" and in my view faster than say Hyperspeeds) Kimetto ran 2:02:57. Same, he seems collected and did not collapse as you falsely claim.
Not arguing that these shoes aren't faster than old hsoes, but if we choose 2014 as a reference as you might prefer, the speed has improved about 1.3%. How much is the shoes vs Kipchoge being fitter than Kimetto, well not sure we will ever find out.
Better argument:
2014, no super shoes (well, Adidas boost flats, which were "fast" and in my view faster than say Hyperspeeds) Kimetto ran 2:02:57. Same, he seems collected and did not collapse as you falsely claim.
Not arguing that these shoes aren't faster than old hsoes, but if we choose 2014 as a reference as you might prefer, the speed has improved about 1.3%. How much is the shoes vs Kipchoge being fitter than Kimetto, well not sure we will ever find out.