I think it has been around for a while, but I agree that it seems to be pushed more now. Keeping a model in step with a real-world environment is to be fair act

I think it has been around for a while, but I agree that it seems to be pushed more now. Keeping a model in step with a real-world environment is to be fair actually quite complex, so I can see a lot of work needing to be done, and that work needing a clear name.