The Science mag article may be very misleading for aspirating Whitney hikers, and others, who might think that one night on Mt. Baldy, for example, is going to acclimate them to the altitude of the summit of Mt. Whiney...or even the trailhead. The operative word in the article is "can", not "will".
The article also says, "But mountaineers, backpackers, and other high-country weekend warriors have long known that this story might not be quite right. It takes weeks to produce new red blood cells, and even ordinary people can adapt within days." Again a misuse of language, in that in the last sentence the word "and" should have been replaced with "but", and "can" replaced with "may".
The article is based solely on one small study of climbers who lived above 5,000 meters for two weeks before continuing their climb. Yep, after two weeks at altitude they were ready to continue, not after one night! This is where the article is very misleading. A short study of one small group cannot possibly be considered scientific, especially when accepted scientific studies by experts (Peter Hackett, et. al.) contradict your assumptions.
http://www.altitude.org/altitude_sickness.php 
