News Summary

• Elon Musk spent the better part of three days on the witness stand this week in his lawsuit against OpenAI.
• Emails, texts, and his own tweets are surfacing in court, and there are plenty more witnesses to come.
• Kirsten Korosec and Sean O’Kane break down what’s actually at stake in the courtroom and what to watch for as Altman and others take the stand.
• Plus deals, defense tech, and what Big Tech's earnings week revealed about the limits of the AI spending era.