This was my first search on Google, but there were many, many, many documents of this nature.
Is this doc sufficient? Or are you looking for something else? I'm aware of earlier docs but it gets more legalize and arcane the further back you go.
By the time the trials started, the argument from Twitter was incredibly strong and well documented. But the stock price of Twitter was still like $40 so you'd have lots of opportunity to make money on the trade (Musk promised to buy at $54.20 after all)
All of that contributes to a completely different picture for me, compared to your statements. Sure, I can read documents like that (if I can find them, if I think of searching for them, ...), but I am not at all confident that my literal interpretation is sound. Thus my perceived risk of an investment would be much higher than yours.
So, maybe literacy is not the point here, but rather confidence in interpreting legal texts correctly, a good grasp of contract law and optimism/experience regarding external factors.
You DO NOT need to be a lawyer to get the arguments. By the time the discussion reaches this stage, the arcane bits are stripped out and referenced explicitly.
In fact, the jury are laypeople, just average Joe's and Jane's. All arguments must be simplified to a point that average people can understand. So it's a good point to pickup info.
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Here's a few key events to note on this particular trial:
1. Strong opening argument from Twitter over the contract. My opinion of course, but just read the document and get a gist of the argument yourself.
2. Weak opening arguments from Musk's lawyers.
3. Repeated reprimands from the trial judge for various mistakes the Musk lawyer team were committing
4. Inconsistency between what Elon Musk was saying in public / in the media and what his lawyers were saying in the trial.
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Note that in this special case, a judge decided the case instead of a jury. But the argument style at this late stage is simplified to the point where ordinary people / a jury can understand in any case.