Red Bull team boss Dietrich Mateschitz says this policy has gone too far, with the Austrian deeply critical of what he sees as the debilitating effects of fast-wearing tires after Sunday's fifth race of the season.
Mann said he personally experienced side effects like dizziness, confusion and flashbacks from wearing early versions of smart glasses that he designed himself.
Investors also expressed concern over rising borrowing costs for Spain and Italy, just as signs are mounting that the effects of the European Central Bank's low-cost loans to banks are wearing off.