What's the Difference Between Science Fiction and Fantasy?

Goliath was not like an easy book to write. Like it came out of me relatively quickly, but it wasn't an easy space to live in because I was also writing about the place that I lived in at the time and still live in. And so, you know, I'd I do think at one point I would like to write about a place where there's like no colonialists. But the thing about it is that it would also be a while to maybe the wildest stretch of my imagination. It's easier for me to envision what the world in 2050 after climate change and nuclear fallout would look like than it could a what could a world without colonialism look like?