I wonder why some people type faster. If tested, I average around 125 wpm in reasonable tests (625 cpm really). I've never tried to learn to type quickly. I've

I wonder why some people type faster. If tested, I average around 125 wpm in reasonable tests (625 cpm really). I've never tried to learn to type quickly. I've never had anything beyond a $10 keyboard and I don't even type like it's taught (my hands overlap on some characters). Despite that I type quite fast with few errors - most of my mistakes are also related to typing in something completely different. It was quite shocking to me when I found out that my friends typed at below 80 wpm when trying to type fast.