Seems like every Jakob fanboy on here wants to lower the mileage, take blood lactate after every stride, and focus on speed work over mileage.
Please focus on the REAl way to get better. Torturing your body as marathon WR holder Kiptum did. Not Kerrs bridesmaid Jakob.
Most of the fanboys on here are just Charmin soft, that’s why their PR’s are slow as snails.