Ok, I told you why I believe we flip back, why do you believe we flip back?Even a blind Chinese Kung Fu master in a santa hat can see that you tried to list a cost as your benefit when pressed to defend your claim.
Do they really let you get away with that sort of thing where you claim to have argued this topic elsewhere? I simply cannot allow it.
NO SOUP FOR YOU!
I've done worse.
In the end, as jamil points out, it is all a human construct put in place by politics. My answer for why we flip back, politics of compromise to get the, wait for it Kelly, fast time most of the year. After years of getting folks used to fast time half the year they increased it substantially. Another increase or two and we will be on permanent fast time. Sorry Dave, but they are heading to put us a full two hours off the sun...