I think the entire stock market is overbought. On average an economic recession occurs every 7 years, the last recession was in 2007/2008. 21 trillion of debt, massive stock buybacks...
A lot of people make this point and yes it is valid on average. I believe the Nasdaq is overbought above 80 RSI from a TA point of view. This entire explanation could be 1,000 pages towards a book. I don't know when it will pop but I wouldn't buy any stock at this point. Do as you please and tread carefully