I always thought my goal should be to become a millionaire by the time I am 30. Failing that, put money away in a pension plan in a serious way.
Then 30 happened and I was a millionaire, in the currency I grew up with and that wasn't worth much (average annual senior tech salary in a 1st world city). Expectations change, as well as the understanding of money, inflation, etc. Most importantly, that it's cheaper to hedge your bets earlier rather than later.
It could be worse :) you reached your goal ! Now the goalposts have moved.
For comparison, I'm 31, and my net worth is about 10.000 dollars :P . I definitely made a lot of suboptimal decisions along the way, but I think I'm finally on my way up.
While I'm a nonbeliever (no afterlife for me), I think that the blog post misses the "experienced happiness vs remembered happiness" point that people like Kahnemann and others have talked about:
Then 30 happened and I was a millionaire, in the currency I grew up with and that wasn't worth much (average annual senior tech salary in a 1st world city). Expectations change, as well as the understanding of money, inflation, etc. Most importantly, that it's cheaper to hedge your bets earlier rather than later.