When your simplifying assumptions don't work, you have two choices: change your model or complain about reality This should be on a t-shirt, I feel. Or on a te

When your simplifying assumptions don't work, you have two choices: change your model or complain about reality This should be on a t-shirt, I feel. Or on a tegeltje (https://en.wikipedia.org/wiki/Tegeltjeswijsheid https://en.wikipedia.org/wiki/Tegeltjeswijsheid)