I see Dad's advice as going for something that can have more meaning to you and for which you need balls then for the safe/low risk model.
It's not about stress, it's about the need of the individual to make a difference. Doing something that has been done before it's not that exciting for a 20-ish year old. But someone older will take comfort in it.
The assumption implicit in that is that starting a hedge fund is "safe/low risk" - which, having started a hedge fund, is just wrong. It is as risky as starting any business. In fact, in some ways it is much, much harder because to gain any size in the hedge business you have to have either come from a very well-known shop or have a very good, audited track record. Even given all of that, count on 2-3 years of managing a small amount of money that doesn't cover your costs. And pray you don't have a large drawdown and have to watch that fast fund-of-fund money disappear.
She really lost me with the stuff about raising $200m - I'm sorry, but that's very, very, very unlikely to happen with an unproven manager with no track record - unless her family name is so strong she could just ride on that. But even given that, I don't know anybody that is giving out $200m to a 25 year old who hasn't run money before. Maybe that happened 5 years ago - I don't think that is happening now.
Lastly - I think it is an interesting idea to audit shipping records to decide on a position (macro I'm assuming), but there was also no discussion of whether she had even tested this and if it even worked.
Like an earlier poster, I frankly found this post insulting.
I am a 20-ish year old and despite "what I do" has been done before, the "way I do it" never has -- and that is plenty "exciting." There is nothing safe or low-risk about starting a hedge fund.
I get your point about "having more meaning" -- but I'd argue that is true for any business endeavor, not just tech startups. If what I was doing didn't have truly personal meaning for me, there is no way I could stomach the stress.
Maybe I'm overly sensitive because the article seemed to compare the easy hedge fund life to the tough tech start-up life, which I think is a gross over exaggeration in the divergent profile: I believe that they are tremendously similar.
I think you're reading into it too much, and you're taking it too far away from the context between Dad and Daughter. This is, and will be, their own personal experiences. For some starting a hedge fund can be seen as high-risk, when for someone that has run one for years (Dad's case) or for someone that's been around one for years (Daughter's case) it can be seen as low-risk.
If Dad was an MD he would've said don't become a surgeon, do research and try to change current procedures. At least that's my take on the blog.