Sure, but ChatGPT is magnifying developer productivity so demand for IT people will continue to decrease. Plus outsourcing. This is also consistent with the theme that more people are being pushed into the trades. Remove other technical options and you get more people learning to weld instead.
The VIX index, a mean-reverting proxy for risk aversion on the S&P500, is currently relatively low. This makes buying options, both puts or calls, relatively cheap. Usually volatility is negatively correlated to spot price of the underlying instrument (in this case the S&P500), but if the market remains flat and there's a significant spike in volatility, the position can still be P&L positive.
As for the convexity, assuming the puts he's buying are out of the money, his total position increases in $ value as it becomes in the money and vice versa. The opposite is true with an outright short.