You might learn 95% in two months, but the last 5% might take decades. One fun thing is that the less you know the more productive you are. So a good strategy i

You might learn 95% in two months, but the last 5% might take decades. One fun thing is that the less you know the more productive you are. So a good strategy is to leave before you learn how horrible your code is, don't stay longer then two years so you don't have to deal with maintainability, performance, scaleability, security, etc.