You have a nice little idea here, not too long, and just the right amount of exposition to drive it home, so +1 from me, there were a few things I noticed in the article that could use an edit.
Starting with the recovery log:
The amputation wound fully healed within seconds.
From the remainder of the article, I understand this is in part due to the nature of 5021, however, I think this could be phrased better, like "The amputation of the subjects arm was observed to heal at a rapidly accelerated rate during recovery", or something like that, wording is key after all.
Next, in the first collapsible addendum:
Subject was unwilling to communicate for weeks following this session
Specification of the amount of time I think would be better, maybe something like 3 or 5 weeks as a number to put there? Just using the word "weeks" isnt very specific.
Aside from that, it's a good article, good job, and Happy Writing on your next idea!