Elon Musk has vowed to abide by the results of a public online poll asking Twitter users if he should "step down" as head of the social media platform.
Tesla chief Mr Musk tweeted the 12-hour poll at 11.20pm on Sunday night.
"Should I step down as head of Twitter? I will abide by the results of this poll," Mr Musk tweeted, along with the options "Yes" or "No".
The poll attracted more than four million votes within an hour of posting.
In a series of separate tweets, Mr Musk said there was "no successor" in line to take over if the poll returns a "Yes" result.
He wrote: "The question is not finding a CEO, the question is finding a CEO who can keep Twitter alive.
"No one wants the job who can actually keep Twitter alive. There is no successor.
"As the saying goes, be careful what you wish, as you might get it."
Earlier, Mr Musk announced a U-turn on a new policy which banned users from linking to certain rival social media websites, including Facebook, Instagram and Mastodon.
He wrote on Twitter the policy would be "adjusted" to only suspending accounts "when that account's primary purpose is promotion of competitors", adding: "Going forward, there will be a vote for major policy changes. My apologies. Won't happen again."
That initial announcement was the latest move by Mr Musk to crack down on certain speech after he shut down a Twitter account last week that was tracking the flights of his private jet.
Recently, Mr Musk also came under fire from officials in Brussels for booting a series of journalists covering the billionaire off the platform.
European Commissioner Vera Jourova said that the suspensions were "worrying" and that EU law protects media freedom.
Many of those accounts were later restored following an online poll by Mr Musk.
Last week, Musk's plans for a revamped Twitter were revealed after a chaotic start to his time directing the company.
One element was the rolling out of Twitter Blue, a premium paid-for subscription that would award users a blue tick - a marking on the account which was once reserved for official figures, celebrities and organisations.
Musk's plans for Twitter Blue's rollout in November were met with carnage and criticism, and the billionaire was forced to pull the plug to try and work out a new strategy.
The popular social media website had several problems with imposters and accounts were seen pretending to be the likes of former President George W Bush and ex-Prime Minister Tony Blair.
One verified imposter account crudely claimed to be pharmaceutical company Eli Lilly and said it was "excited to announce insulin is free now."
The post was eventually deleted after it received several likes and retweets. As Eli Lilly's stock fell by two per cent, the company was forced to issue an apology.
Twitter punished the account by turning it to private and removing its verification tick.
