Unlike scientists apparently, I think that when three out of four things share similarities, the fourth one is actually different. But see what you think of this BBC report:

There was no difference in the drinking time for soft drinks. People drinking from both straight and curved glasses finished after around seven minutes. However, for the beer drinkers there was a large difference between the two groups. While it took around seven minutes for people drinking from a curved glass to polish off their half pint, it took 11 minutes for those drinking from a straight glass.

Are there no editors left at the BBC web news service? Why is the news that people "unable to judge how quickly they are drinking so cannot pace themselves" when a half pint of beer - but not a half pint of a soft drink - is consumed in seven minutes. Is not the actual real outcome that without curved glass, people slow beer drinking inordinately or even unnaturally? Delayed gratification by a cruel trick played upon one's perception. The 71% deferral in hydration is clearly a loss to humankind, is it not? Is there similar work being done one wine glasses and the need to straighten them up? I can only hope that something can be done quickly to stop that madness, to slow the guzzling of wine.