The beat the song is built on is one bar, played through bars 11-24 and 67-80 -- 16.7% of every bar the kit plays. This one moves around more than most: the beat is where to start, not the whole job.
It is played on hi-hat, snare and kick, counted in sixteenth notes. On its own it scores 67 out of 100 -- demanding -- and the thing that decides that is the independence between the hands and the feet.
The whole song is 96 out of 100, so the beat is not the hard part: what costs you is everything around it, the joins and the fills.
A part this hard is not learned by playing it slowly and hoping. The room opens it on its simplest reduction -- the timekeeper alone, at 102 BPM -- and adds the notes back over 4 rungs, each with a tempo to reach and a gate to pass before the next.
Tempo goes 102, 120, 139 and 157 BPM, and the gate at each one is 8 loops in a row with no wrong note and no wobble in the time.
PRACTISE THIS BEAT →A one-bar groove on hi-hat, snare and kick, in 4/4 at 157 BPM, counted in sixteenth notes. It is written out above, and it covers 16.7% of the bars the kit plays.
Bars 11-24 and 67-80. The time is kept on the ride to start with, and it changes 14 times over the song.
67 out of 100 on its own -- demanding. The song as a whole is 96 out of 100. Hard, and what makes it hard is how many notes a second it asks for.