Johnny Depp's $50million (£40million) defamation lawsuit against his ex-wife Amber Heard has finally come to a close after their lawyers delivered closing arguments on Friday.MORE: Inside Johnny Depp and Amber Heard's 'intensely passionate' 15-month marriageWhile the jury deliberates on a verdict, Amber's ex-boyfriend Elon Musk – whom she dated in 2017 after her split from Johnny and just a couple of months after accusing him of domestic abuse – has had his say on the trial.WATCH: Kate Moss testifies at Johnny Depp and Amber Heard trialElon shared his reaction on Twitter in a reply to MIT research scientist Lex Fridman, who shared his takeaways from the trial, which included: "Fame is one hell of a drug (for some)" and "Psychiatrists & lawyers come in drastically varying levels of skill."Responding to Lex, Elon wrote: "I hope they both move on. At their best, they are each incredible."READ: What Johnny Depp's lawyer REALLY said as he celebrated Amber Heard's Kate Moss commentMORE: The real reason Johnny Depp REFUSED to look at Amber Heard during trialAmber and Elon met on the set of the 2013 movie, Machete Kills, where they swiftly became friends but only started dating several years later.