I made a couple of mistakes above. Let me correct them.
The code is not 13 years old. It's 15 years old.
The report did not forecast 500,000 deaths, it was 510,000
Imperial College have released a 'derivative' of the code. Not, you understand, the original code actually used to produce the report, but something that has been 'tidied up' by a team from Microsoft. .
There is an analysis of the 'derivative' here
https://lockdownsceptics.org/code-review-of-fergusons-model/
The page was slow to load on my laptop, so here is a choice quote:
"Non-deterministic outputs. Due to bugs, the code can produce very different results given identical inputs. They routinely act as if this is unimportant.
This problem makes the code unusable for scientific purposes, given that a key part of the scientific method is the ability to replicate results. Without replication, the findings might not be real at all – as the field of psychology has been finding out to its cost. Even if their original code was released, it’s apparent that the same numbers as in Report 9 might not come out of it. "
Report 9 is the report with the 510,000 deaths that was used to spread hysteria among the populous by the media.
edit: - Microsoft? How the hell did they get involved?