Awesome, thanks; I really want to find that Journal of Portfolio Management paper.
I don't know if this what the paper is about, but it seems clear that you just send the goods and have a navigation computer - with no-one aboard. Then it's only the goods that age - which means a long best-before date.
This is why you should not comment on articles you have not read, as this is the exactopposite of what the article was about. It was about the idea of putting a human on a long relativistic journey while his money is left on a bank account on earth to let it age (i.e. carry compound interrest) a hundred times faster than its owner, thereby increasing the subjective interrest rate by the same factor.
Actually, I had read it. I just said I didn't understand it.