Telsa and SpaceX founder Elon Musk is confirming he attended a notorious sex party in Silicon Valley that was depicted in a new tell-all book exposing the excesses of the tech world's "bro" culture which silently enforces gender biases in pay, investment, and research and development.

Vanity Fair magazine last week published an excerpt from journalist Emily Chang's forthcoming book "Brotopia".  The passage told the story of a woman who received an invitation to the party, in which several people were on the floor of a living room in something called a "cuddle puddle" (no one ever tell me what that is please) and doing the drug MDMA.  The salacious episode set Silicon Valley reporters in search of details regarding who hosted the party in June 2017, and who attended.

Axios was first to determine the party was held at the home of venture capitalist Steve Jurvetson, founder of the firm Draper Fisher Jurvetson which he left in November amid a sex harassment investigation.  Computer scientist and blogger Paul Biggar then revealed he was there at the party; he saw Musk, and perhaps one other even bigger billionaire; and that it was presented as an official function of Jurvetson's firm. 

In a statement to Business Insider, Musk says he thought he was attended a corporate costume party, and that he spent his time talking shop with other entrepreneurs and cut out at about 1:00 AM without witnesses any sexual activity nor drug use.  Biggar said he left a half hour earlier, and likewise saw no illegal or unethical sexual behavior.  But he admits "sex parties don't really kick off until the boring f_ckers go home".  Biggar also maintains that "it's incredibly f_cked up to use your power as an investor, or to allow your power to be used by others, to lure women to sex parties, or for this to be a means of women getting access to Silicon Valley's power structures".

An unnamed female entrepreneur suggested these parties are frequent occurrences, and told Ms. Chang:  "If you do participate in these sex parties, don't ever think about starting a company or having someone invest in you.  Those doors get shut.  But if you don't participate, you're shut out.  You're damned if you do, damned if you don't."