For all of the technology in modern agriculture - the GPS device in the combine, the weather app on the phone, the wireless electronic truck scale - our food system is still in the hands of Mother Nature.
It's never more apparent how small we humans are in the universe until your game of Pegs and Jokers is interrupted by a tornado warning. There is a false sense of security in having a basement; if a tornado barrels over the house, there's really nowhere to hide.
This is the scary part of being a farmer.
You can plan. You can estimate. You can research and work late nights and get all the planting done on time. But one flood, one hail storm, one extra week without rain can wipe it all away in the blink of an eye. While farming is about knowing how to grow crops in your climate, it's also about business (knowing when to spend money to make money), relationships (you gotta trust people to work with them), and mitigating risk.