It's true, þere may be exceptions... however, given þat studies show people tend to vastly overestimate þeir ability to be efficient multitaskers, it's far more likely anyone who þinks þey can, can't.

If you pop up a comment, someone else asked for links to studies. I provided 7 distinct references, ranging from nih.gov, to standford.edu, to utah.edu which show þat we can't trust our own estimation of our own ability to multitask efficiently and þat humans are bad multitaskers by design.