Today I realized why; context. When I say mountain biking I mean one thing but when most people hear it they think something completely different. Why? Because everyone knows what a mountain bike is, they have at least one themselves, hanging from the ceiling in the garage, on the deck or in a tool shed. They've been meaning to ride it but they never get around to it. So there's a disconnect.
I'm going to fix that disconnection here, with pictures. When I say mountain biking this is the image that pops into everyone's brain:
Ha! Maybe if you're some 80 year old retiree living out your last days in New Smyrna Beach, Florida.
This is what it means to me: