The chart in the tweet represents year-on-year growth. Based on these figures alone the actual number of people employed in tech is still really high, and the numbers can't just go up forever. Also this only captures 6 industries, which is a narrow view of what would define "tech" these days. Not to say that the job market isn't tough but this graph is a very narrow view
Thanks for pointing this out - title is extremely misleading. Total tech jobs is not lower than 2008 just because YoY is down.
Over 100K people graduate in CS/IT per year, and that doesn't even count people who come in to the industry from overseas or from other degree paths.