I just read those analysts posting and forget it right away, but never take into head.
I am confident Apple is the first to reach 1 Trillion mark and this may likely happen after thanksgiving and before Mar 2018.
The best way is to analyze by reading balance sheet, quarterly/yearly income statement,company forecast and market reaction.
In stock market, when 2008-2009 real estate like situation happens, be bold to buy. It is a great risk to buy RE in 2008-2009, but rewards are seen long after.
Stocks are exactly like that.