Sure, a glass box of plants sounds romantic, but let me spell out why it’s a nightmare in the wild. You’ve got to balance light, CO₂, and water, and any leak turns the whole thing into a floating sauna. Pick plants that actually thrive on the solar panel’s weak spectrum, keep a salt‑water cycle that won’t evaporate faster than you can collect rain, and you’ll still be lugging a whole greenhouse on your back. It’s a neat idea, but the logistics of maintaining a tiny ecosystem outweigh the convenience of a “no‑kitchen” backpack. And trust me, nobody ever leaves a glass box in a blizzard without it breaking.