Hydroponics as well I guess. My DIY automated grow room with a water pump, grow lights, heater and plant shaker (for pollination) always has people think I'm growing weed but I just want chillies and tomatoes.
Can't afford to take the chance. Most startups fail and people generally only see the succes cases. If you're not dependent on work you can afford to take chances like this.
I'm pretty sure cats domesticated us instead.