saying

[robo hippy]

I saw this on a sigh board today, and had to share: If you could walk through walls, wouldn't you fall through the floor? robo hippy

[Toller]

Not necessarily. "could" implies it is possible but not obligatory. So, one could presumably chose not to fall throught the floor.

But, an invisible person would have to be blind.

[Teamcasa]

Who says the wall has to to be on a floor?

[todd]

Only in the visible spectrum.

todd

[Puckdropper]

"robo hippy" wrote in news: [e-mail]:

That's easy: Plywood is dimensionally stable. While you may think that means it doesn't change much as the environment changes, it really means it doesn't change much as the dimension you're in changes. Therefore, since floors usually consist of some plywood sub base (for its dimensional stability) you don't fall through the floor when you can pass through walls. ;-)

Puckdropper