The rise of tech apps and wobbly share prices

Five years ago on Thursday, the World Health Organization declared a ‘public health emergency of international concern’: covid-19.We all have our personal stories: some good, some bad, some sad, and some just absolutely mad. I was in San Francisco at the Morgan Stanley Tech Conference at the time. We were all bumping elbows, tapping shoes – remember that weird soccer thingy?I recall sitting in a presentation of a company that had recently undertaken an initial public offering, saying to myself that the stock was expensive...