Maybe it will seem as a dumb question, but how Twitter can be in the loss (in order of millions of US dollars) since day one, without (IMHO) clear path to profitability and not be bankrupt? It is growing, but it still has huge losses. Do investors believe it will be hugely profitable 5-10 years from now? Is this new normal in business?
On top of that, what kind of revenue do the ads bring in?
Their problem isn't that they can't make money. It's that their valuation means investors expect them to make a ridiculous amount of money. So all revenues are plowed back into R&D.