You're the
test pilots.

Real use reveals what the designers couldn't anticipate.

In fact, I think of web developers a little bit as test pilots. I like this analogy. Test pilots, when they test planes, don't spend all their time using the perfect finished vehicle. They take experimental machines to their limits. They discover where things behave strangely and they encounter situations the designers hadn't anticipated. And that's part of how the plane gets better. We do that with the web too. Web features don't improve purely through theoretical discussions or rules that are written in advance, in a vacuum. They improve because developers try them. And they can only try them if we ship them in browsers.

You're thetest pilots.

You're the
test pilots.