Look at the comparison to CSCO in 1999/2000... the similarities are absolutely incredible between CSCO in 1999/2000 and TSLA in 2020... Here are a few: 1) At the height, I CSCO had around a 160 P/E ratio... Right now TSLA is a forward P/E of 167 (@ $3.90/SHARE). 2) CSCO's IPO was in March 1990 (about 10-11 years before peak optimism)... Tesla went public June 2010 (again, about 10-11 years before today). 3) CSCO's revenue growth the quarter before/of the share collapse was 48%, TSLA's expected 2021 revenue growth is 46% 4) CSCO got a jump and dominated the market and in 1999/2000 the fear was that new entrants would start nipping at their heels with new product offerings. TSLA is in the same situation right now - they are clearly ahead (now) with incumbent auto makers and the likes of NIO, etc. nipping at their heels. 5) CSCO was selling "networking systems" and not individual products... TSLA is DEFINITELY NOT a car company, they're more than that. 6) In the telecommunications service provider market - Cisco lacked product breadth so they started having stiff competition with smaller rivals. TSLA only has a few models of cars (today) and the auto consumer clearly likes options and variety. Check out this article in Forbes a few months before CSCO began to drop. 7) The chart 4-5 years before the CSCO crash is almost identical to the chart of TSLA up to now.source: a user.Short TSLA on T2BF.