Are Lockdowns Absolutely Necessary to Contain the Coronavirus Pandemic?

Many countries have imposed strict lockdowns to control the spread of coronavirus. Marko Kolanovic of JP Morgan claims that numbers had declined because the virus "likely has its own dynamics" that are "unrelated to and often inconsistent lockdown measures". He cites as evidence a number of places whose infection rates, or "R" values, have continued to fall despite restrictions being lifted. Coronavirus Transmission Rates Before & After Lockdown. Source: JP Morgan Are these absolutely necessary? What are its costs and benefits in terms of lives and livelihoods , particularly in developing countries like Pakistan with young populations? Over 40% of all coronavirus deaths in Europe and America have occurred among the elderly living in nursing homes. Pakistanis age 60+ account for 19% of cases but 58% of deaths. Like US and Europe, older people are much more likely to die from coronavirus in Pakistan. But average life expectancy in Pakistan i...