A year is too long a time to do something day in day out without it being an obsession, otherwise you'd get bored and pack up way before you got to the end.
The HAMR is an obsession for Amanda, probably more so than for Kurt, demonstrated by the fact that her rides have been so much more consistent without the ups and downs that Kurt had. Some, I know Kurt had due to mechanical/medical issues but there were others with doubts or loss of interest in what he was doing.
Amanda's stats for her ride posted today (Day 265) on Strava
https://www.strava.com/activities/854208147/analysis403.1km at an average of 34.1km/hr
Total ride time 12hrs 35mins with about 45 mins of stops.
When you look at the analysis of the ride she started off quite slowly (30kph for the first 50km) and gradually increased her pace, for the next 275km she averaged nearly 35kph.
She then
increased her pace to average an incredible
38.4kph for the next 50km !, before easing back towards the end of the day.
You can see that she had the company of some very capable fellow riders at times for this ride.
Her obsession for the HAMR (will and determination if you like), good support from Mum and Dad and other cyclists, and phenomenal cycling ability will mean that all being well she will beat the current record with over a month to spare.
There is no doubt in my mind that she will then keep going on a relentless mission to achieve the highest number of miles possible.