This is the problem. How good is a model compared to reality. I heard one argument against Climate Change being that it is 'just an estimate', that reality is

This is the problem. How good is a model compared to reality. I heard one argument against Climate Change being that it is 'just an estimate', that reality is more fine grained. How can you trust a model since the model is just an estimate of reality that leaves out a lot of details? They were calling into question all models, in order to debunk Climate Change. Not sure they realized how much of the technology is based on models.