A bit unfair, as you neither have read the original paper, nor even given the benefit of the doubt to the possible deep meaning of "computer model that simulated". It's not like academia is this stupid or peer reviewed papers are that low quality.

There is a link in the article to the original paper, here is if you want to investigate more:

https://advances.sciencemag.org/content/5/5/eaau2670

Material and methods chapter might be of interest for you.