O. M. G. Ridiculous. Let's not start at the screen. Let's start at the keyboard. If your chair is at the right height, and your laptop is on a desk, you're at a good, neutral elbow, right-angle setup for typing. Good. Most laptops have full size keyboards with soft touches, requiring very little force to run. That's good. Trackpad? Also good, as it means I'm not reaching my arm out around an external keyboard and PHONE BOOKS and misaligning my spine. The tap feature of my MacBook Pro trackpad also means I exert very little muscle action/force to zip around and click things. Good. The screen angle? Better a little too low than a little too high. As your ergonomist knows, human eyes are more comfortable looking a little bit down rather than straight ahead, or up. If your screen is too low, you tip your eyes first, then your head a little. If your screen is too high, or even eye-level, you tip your head *back* so that your eyes can tip *down*. Now, *that's* bad posture.

Clearly, I'm a laptop addict, and I find them so much more comfortable and less straining to use than desktop (particularly CRT desktops).

Geekily yours ...

Good work. Looking forward to seeing more videos from Spark.