When you’re driving through the United States’ vast and scenic patchwork of farmland, tech moguls may not immediately spring to mind. And so you may be surprised to learn that the person who owns more of our country’s fertile, picturesque landscape than anyone else is none other than Microsoft co-founder Bill Gates.

The speed, size, and secrecy of “Farmer Bill’s” land purchases (many of which were made using shell companies) set off alarm bells for many people. Why does a tech-obsessed billionaire need more than 240,000 acres of farmland (that we know about), and what is he going to do with it all?

Gates himself claims the land is just a good, solid investment, but many, including U.S. Representative Dusty Johnson, are calling for an explanation.