I feel compelled to write this though it's only tangentially relevant to the article and is an adaptation of Taleb's story of stock-picking monkeys[1] from either Fooled by Randomness or The Black Swan: Say you have an email list of 100000 investors, you ask ChatGPT to produce 100000 predictions and send these out to each investor. Assuming ChatGPT is as good as a coin flip, 50000 investors receive good predictions.…
What sort of market prediction is decided by coin flip though? This makes more sense in the context of a binary outcome like sports betting in which you are betting on a team either winning or losing.
I would think that there is approximately a 50% chance of most stocks beating the market on any given day though.
If you send a bunch of e-mails saying "${ticker} will go up more than the market tomorrow, I'd recommend you invest and hedge with a bet against the market" for a variety of random tickers, I'd guess around half of them would pay off.