Another difference between the October 1982 run and today's. The previous high on $SPX was 11/28/80, nearly 2 yrs earlier. SPX hit it's latest high 2/19/20, 3.5 months ago.   
There is one strong analog between '82 &amp; today. Unemployment was 10.8% at end of 10/82 &amp; 13.3% now. https://t.co/mAONixvH4Q