I don’t think there’s a great explanation for it being linear. But if you ask him I expect you’d get some combination of: - writing it in a mad frantic rush[1]

I don’t think there’s a great explanation for it being linear. But if you ask him I expect you’d get some combination of: - writing it in a mad frantic rush[1] every day and just getting slower over time - it being harder to write novel things, or there being more to read in the morning - family life, eg he has a toddler and would work in the early morning so maybe helping with the morning rush or going to bed later as the kid gets a bit older. - covid breaking the usual schedule of ‘work frantically in the morning then come to the office to chat to colleagues - linear increase in time spent reading fan mail in the morning [1] I think he’d definitely say something like this.