There's good and bad ways to count stuff and have a high degree of confidence in the result. Counting the number of Computer Science graduates in a year seems

There's good and bad ways to count stuff and have a high degree of confidence in the result. Counting the number of Computer Science graduates in a year seems like a fairly trivial problem where you could get an answer within ~1% of objective reality by simply counting public information and published figures. But how do you count the number of jobs that are actually available? How does anybody distinguish between "real jobs" and companies just putting feelers out there to harvest resumes, manipulate the immigration system, and keep appearances up to investors in trying economic times? A lot of engineers that are looking for work right now strongly feel that a lot of job postings out there are just utter bullshit and many job posts are posted with no real intention of hiring anybody. The best way to measure supply/demand trends might be to look at wages. That's one thing that's really hard to fake and get wrong. Are Computer science graduate wages going up or down? If there actually was a massive shortage of computer workers near the level you describe, wages would be on a rocketship straight upwards right now. Are they? A lot of engineers are seeing that wages in tech seem to be plummeting right now.