I find this largely to be true and a very useful mindset to have, however, personally I've observed two shortcomings: 1. At work, there are some projects that

I find this largely to be true and a very useful mindset to have, however, personally I've observed two shortcomings: 1. At work, there are some projects that offer higher future value than others. Every task has some hidden future value - but some are higher than others. And predicting their value is, to me, better than random. 2. Eventually, you arrive at resume padding - which is a pretty demotivating and toxic mindset to have.