If it sounds nothing like her, and there was no intent to make it sound like her, why would he tweet "The killer app of LLMs is Scarlett Johansson"?
Many people made the comparison right after it was released https://x.com/search?q=scarjo%20until%3A2024-05-14&src=typed... and https://x.com/search?q=johansson%20until%3A2024-05-14&src=ty...