'All models are wrong, some are useful'

These famous words of statistician George Box pointed out that we should focus more on whether something can be useful in daily life than debating if it is correct in all cases. The test of knowledge is utility, not truth.

Einstein's work was not always correct, but it has been very useful to increase our understanding of the world and to use for practical purposes such as the Global Positioning Systems (GPS) used in your phone.