2. Yeah, we have overcrowding, inequality, classes, and war. There are bugs in agriculture. Overcrowding just means that most people aren't dying off quickly like they did when there wasn't farming. Inequality just means that some people are now wealthy, where before nobody was wealthy. I'd bet war happened before, too; it just happens on a larger scale now because everything happens on a larger scale now.
3. You can't do most kinds of technology, education, or pretty much any other kind of endeavor if you have to spend all your time near enough naturally growing sources of food to not spend all your time in transport. Most kinds of art and technology come from concentrating appropriate quantities of appropriate kinds of people in one place. That's the point of universities, conservatories, and, for that matter, companies. Most interesting things in the world come from concentrating people.
2. Yeah, we have overcrowding, inequality, classes, and war. There are bugs in agriculture. Overcrowding just means that most people aren't dying off quickly like they did when there wasn't farming. Inequality just means that some people are now wealthy, where before nobody was wealthy. I'd bet war happened before, too; it just happens on a larger scale now because everything happens on a larger scale now.
3. You can't do most kinds of technology, education, or pretty much any other kind of endeavor if you have to spend all your time near enough naturally growing sources of food to not spend all your time in transport. Most kinds of art and technology come from concentrating appropriate quantities of appropriate kinds of people in one place. That's the point of universities, conservatories, and, for that matter, companies. Most interesting things in the world come from concentrating people.