roger peppe wrote:
2009/10/23 W B Hacker <[email protected]>:
We can't 'ave two 9'ers actually *agree* on sumat!
i found it interesting that face to face there seemed to
be much more agreement than disagreement.
very constructive.
i've had a brilliant time.
ACK. Good to hear!
Human nature to get petty, pedantic or pissy on email - usually (not always!)
without intending to do so. Humans are 'hard-wired' for face-to-face and
observing visual clues as well as audible.
Researching near-miss mid-air collisions in clear weather, the FAA a few years
ago discovered that when speaking, even on the radio, a pilot's eyes snap from
scanning the sky with focus at 'infinity' (anything over ~35 feet for our short
baseline binocular vision) to ...FOUR feet.
Just about where another person would be when talking 'live'. Not to mention a
'puter screen. Check it against the audience, whiteboard or theatre screen
dropping out of focus when you start to speak..
Fortunately, it can be trained around.
Bill