If you look at the code, he's incrementing the value, but if you look at his data (pasted below), the number to increment is in the key. It's not clear from that data that the left column is a key -- it could be an HoA -- but in the past, he explicitely said the score (the number to increment) is in the key.
35 forc two bodi twice strong on bodi sai bodi mass
39 you expect on think new bodi made two bodi origin
60 attract bodi b origin force
46 total forc b twice origin force
34 sai on bodi twice mass three time mass forc six
17 on now see why bodi fall same rate bodi twice