Jack Dorsey spends his mornings running one of the world's most persuasive informal communities.
At that point, at lunchtime, he springs up from his work area, strolls a short route down Market Street, and assumes responsibility of one of the world's greatest installment firms.
Simply envision that. Running both Twitter and Square should definitely make Dorsey one of San Francisco's most under-weight CEOs - an inbox chock-a-piece with to-dos.
Numerous individuals said he wouldn't have the capacity to do it. To be sure, when Dorsey returned a year ago to Twitter, an organization he helped to establish, it was just intended to be an impermanent measure.
In any case, in the long run, the board arrived at the conclusion that on the off chance that anybody was equipped for switching Twitter's fortunes, it was Jack Dorsey, regardless of the fact that they just had half of him.
140 characters is dead, long live 140 characters
It has been just about a year since he recaptured control of the organization, and his most squeezing issue in those days still confronts him today: alter Twitter.
"We're gaining ground," Dorsey let me know, including that he considers the most imperative thing to be the organization's capacity to devise, create and discharge upgrades to the administration.
"That is going extremely well, however you know, things require some serious energy to change."
Shockingly for Twitter, the 300 million or so individuals who utilize the administration at any rate once every month don't generally take well to new thoughts. One late furore, for occasion, was around a symbol transforming from a star to a heart.
What's more, Dorsey's own conveyance of a declaration this week was intended to broadcast that work was being done to make Twitter a less difficult spot to invest energy in the web.
However, in the meantime, he expected to stretch that Twitter wouldn't change so much that its current, wildly steadfast clients would feel estranged.
The "new" tweets, in which clients can include photographs and recordings without spending any of the 140 character limit, appear to have found that sensitive equalization.
"We're not abandoning Twitter being at the time," he said. "That idea of curtness, that idea of pace. Having the capacity to quite recently consider something and put it out to the world."
More profound issues
Be that as it may, enhancing effortlessness isn't even a large portion of the fight for Dorsey.
Twitter, you will probably have seen over the recent years, has turned into an administration synonymous with online misuse.
That might be an out of line tag to stack onto Twitter, yet the simplicity in which individuals can join - combined with an absence of a Facebook-style genuine name approach - implies unknown, disdainful remarks feel more typical here than somewhere else.
Whether an open figure or not, those got amidst a contention can discover the pace and recurrence of answers overpowering, and for a few, truly unnerving.
"I don't think the antagonism and the misuse and badgering is extraordinary to Twitter," Dorsey says.
"I believe it's an expansive, web wide issue that we as a whole need to settle. Also, we made it a need for the organization."
He went ahead to layout the organization's apparatuses for blocking and reporting harsh clients.
In any case, it's around there that Twitter has numerous clients unconvinced.
The individuals who have been forced to bear misuse think about how it can be that, following 10 years, Twitter's specialists are yet to devise courses in which mishandle can be proactively halted from achieving those being focused on, as opposed to depending on responsive activity.
One well known recommendation - giving clients the capacity to consequently overlook messages from records that have just barely been enrolled - stays disregarded, until further notice. Dorsey records security as a need, however you could contend it ought to be the need.
Auction
What Twitter has pulling out all the stops, obviously, is that a horrendous parcel of individuals would miss it were it to vanish.
Despite the approaching danger from "cooler" systems like Snapchat and Instagram, Twitter until further notice remains the world's watercooler.
However, what amount is that value? One simple approach to reduce the weight on Dorsey and his group would be to offer up. Typically, names like Google and Facebook spring to mind.
Is Twitter available to be purchased?
"We're centered around making Twitter stunning and making something individuals need to utilize each and every day," says Dorsey, maintaining a strategic distance from "no".
"We are a free organization and we're flourishing and we need to keep on building that."
Regardless of the fact that Google came to him at this moment with its checkbook?
"We're centered around building our administration."
Since 2014 Twitter's stock cost has dropped from an untouched high of $69 (£47) to, at the season of composing, $14. It most likely can't go much further south without somebody making an offer he can't cannot.