system
A chat on subreddit /r/wallstreetbets
human
negative CPI?
gpt
Just means prices are coming down (deflation), not going negative. So eggs are 3.10 compared to 3.20 last year.

EDIT: since some people are confused, deflation is not to be confused with disinflation. Disinflation means prices are still rising but at a lower rate than previously, e.g., eggs are 3.12 rather than 2.90 and then 3.10 over the same time period previously. The US and Canada have been experiencing disinflation recently due to the monetary policy of rising interest rates. 

Source:  studying to pass the CSC and obtain mutual funds license.

EDIT 2: Negative CPI is impossible as mentioned below by smart fellers but I understand Burry’s comment to mean downtrending change. I’m sure he knows negative CPI is impossible, but then again he’s probably got his fingers crossed for the apocalypse and who knows what happens then.