1. Bertie Coetzee operates Lowerland farm in South Africa which he is converting to organic and regenerative practices including no-till farming, crop diversity, mob grazing, and closed-loop systems. 2. Lowerland produces organic crops like maize, wheat, teff, pecans, wine grapes and pumpkins which they process into products like flour, malt and wine to add value. 3. The challenges of transitioning include managing complexity, securing multiple markets and distribution partners, and financial sustainability during the conversion phase. Coetzee believes in managing complexity through diversity and resilience.