In my experience we humans have nearly zero capacity for looking ahead with any accuracy. What we invariably do is look around us and simply extrapolate into the future. The reality, however, is that we're mostly operating on the basis of hardwired behaviors and mental models resulting from hundreds of thousands of years of selection pressure within environments that were very different from those of today. What this means is that we have strong need for group affiliation, which in turn means the much-vaunted "death of the office" is highly unlikely (alas) and so within a year or so people will be back to life as it was until recently. And therefore Starbucks' future is probably neither as gloomy nor as complicated as one might think.