Another entry in the ever-expanding Catalog of Mushy Hacker Metaphors. Joining the classics (painter, rockstar, poet) and newcomers (ironman competitor, marathon runner, martial artist) is 'farmer'. Looking forward to 'pterodactyl' and 'balcony'.
Dumbing this down to just 'beans & rice' is a bit ignorant. In my culture alone we have at least 5 dishes with grain components that all taste vastly different from one another. As to the comparison, grains are often a more 'practical' type of food as they're cheap, have a long shelf life, and are quite diverse, possibly making them more appealing hackers.
I meant no disrespect here - as I mentioned beans and rice are enjoyed world-wide, in all manner of different styles. I count a few varieties among my favorite food combinations. Thanks for sharing.