> As a vegan I refrain from eating insects (although I find it a lot less offensive than eating mammals), so some selected nuts/seeds and a B12 supplement do the trick for me.

Hey cool, I'm vegan too! I agree, supplementing B12 and eating nuts and seeds is way nicer (morally and taste) than eating bugs.

> Given that we can buy tropical fruit (yay for mango) by the box, and have knives, I'd say it has never been easier.

That's a good way to look at it and I agree. However in my own experience, it is still a lot of work. I live in the tropics where it's easy to buy a huge box of papayas, mangos, etc. I did this for about 3 months, eating only raw food and mostly only fruit, and some greens and soaked seeds. My body felt very strong and refreshed, but I spent a lot of time preparing and even buying food to keep it in stock and fresh. I slowly went back to more cooked foods like rice and lentils. It doesn't feel as good, but it's a compromise of time at this point.