It's exactly the same thing I have been doing. This is a common project management practice. If you translate this practice in the terms of the original article

It's exactly the same thing I have been doing. This is a common project management practice. If you translate this practice in the terms of the original article. This is a kind of double thinking. You know the time it's going to take you, but you also know that you need to multiply it by 3 for it to be correct.