Oh yeah, you can see it. It's real! ;)
In my experience cold wood in a choked fire will produce white smoke. A really hot fire will burn with very little smoke.
Some folks like white smoke and swear by it, using green or wet wood. In the end, as in everything, it comes down to personal preference.
NB El Dorado Offset, Primo Oval Junior, Traeger Model 075 Pellet Pooper, Big Chief, Kingfisher Kooker 14" gas/wood combo, PBC Brethren Edition
Home Brewer, Murderer of Squirrels, Armadillo Inspector
Flaming Pig Head Mod
Black Thermapen, red backlit Thermapen
Certified KCBS BBQ Judge