Elon Musk tells Twitter staff to work long hours or leave- PublishedElon Musk has told Twitter staff that they must commit to working "long hours at high intensity" or else leave the company, according to reports.In an email to staff, the owner of the social media firm said workers would be expected in the office for at least 40 hours a week, Bloomberg reported.But tech investor Sarah Kunst said the real reason Twitter is facing difficulties is because Mr Musk's takeover has saddled the company with debt.He described his work habits in a US court on Wednesday, where he appeared to defend the eye-popping $56bn pay package he received from Tesla in 2018."But he also needs to play nice in the sandbox because if key Twitter engineers and developers leave, this will be a major void in the Twitter ecosystem," he warned."