You don't really have to be a billionaire. Land is pretty cheap if you're far away from a city. And people start similar permaculture and agroforestry projects

You don't really have to be a billionaire. Land is pretty cheap if you're far away from a city. And people start similar permaculture and agroforestry projects all the time. Also the reason for more monocultural forests like that is because the soil is high quality. If you had really low quality soil (like in the Amazon) you would have developed a lot more biodiversity