An antifragile business should be antifragile period, not just in certain times. N.N. Taleb would surely give you a vigorous public thrashing for mis-applying his term :-).<p>Most online services will grow while people are stuck at home. Entertainment will grow somewhat, but practical and educational services will grow even more.<p>As well as a huge immediate demand for masks & sanitizer, the public will probably demand an substantial stockpile of such supplies for the future. So if you build a mask factory, you don't have to worry that demand will fall off a cliff in a few months.