"He had no conception of what the cave passage was like".
During the cave saga, Mr Musk flew to Thailand with a prototype mini-submarine the help rescue the boys.
This set Musk on a Twitter rampage - which have become all too common for the 47-year-old entrepreneur.
Vern Unsworth, a British-born diver living in Thailand who worked on the 18-day-long rescue mission, publicly dismissed Musk's attempt to save the boys as having "no chance of working".
Musk was criticised by many, some of whom accused Musk of using his sizeable (22 million) Twitter following to incite ill will towards people, and others saying his comments were clearly libelous. "Thai navy seals escorted us in - total opposite of wanting us to leave", Musk wrote. If not true, then I challenge this dude to show final rescue video.
The tweetstorm was in response to a tweet from professor and New York Times writer Zeynep Tufekci, who wrote an op-ed arguing that Musk could learn a lesson about Silicon Valley hubris from the incident. "We will make one of the mini-sub/pod going all the way to Cave 5 no problemo".
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Musk can be seen in the tweet asserting to Tufecki that he intends on recording video of the sub making it to the cave network where the boys were found, as well as referring to Unsworth as "pedo guy".
Unsworth concluded this portion of the interview by claiming that Musk had been quickly asked to leave the cave during his much-tweeted-about visit.
Last Tuesday, Musk told his Twitter followers he had just returned from the Tham Luang Nang Non cave complex.
Meanwhile the two Australians who helped in the global rescue of the Wild Boars soccer team were given diplomatic immunity in the event anything went wrong during the treacherous rescue.
Musk fired back at this claim, saying the former provincial governor was "not the subject matter expert" and sharing his correspondence with leader of the dive rescue team Richard Stanton.
The NYT writer said she was dumbfounded by Mr Musk's tweet and called on the billionaire to apologise.