The opening chapter is the most important chapter in any book. It's like the first bite into a brand of frozen pizza you've never dared try before. Within seconds you know if you're going to venture into the rest of the thing or avoid it altogether and never recommend it to anyone else. And usually, there is no middle ground between those two outcomes. Love or hate. Your opening chapter determines it all.
The article "4 Goals for a Novel's Opening Chapter" by Darcy Pattison