世界正进入一个反复试验实验期，城市和国家成了露天实验室，研究如何在新冠肆虐下最安全有效地重新开放回归常态。各个社会正在权衡利弊中摸索，基于公共卫生和常识的原则推动政策建立，在困境中找到最佳解决方案。史无前例的疫情令全人类在未知中航行，在高风险的试错中竭尽全力重塑社会生态。

Reopenings Mark a New Phase: Global‘Trial-and-Error' Played Out in Lives

MAX FISHER

第一段：

The world isentering a period of high-stakes experimentation, with cities and countriesserving as open-air laboratories for how to most safely and effectively reopenamid the coronavirus.

Unable to waitindefinitely for science to answer every riddle about what makes infectionsspike in some circumstances and not others, governments are pushing ahead withpolicies built on a growing but imperfect understanding of the virus.

And with littleconsensus on how best to balance public health against social and economicneeds, societies are feeling their way through trade-offs that would begut-wrenching even with better information on any given policy's likely cost inlives and livelihoods.

第二段：

"We're in themiddle of a global trial-and-error period to try to find the best solution in avery difficult situation," said Tom Inglesbury, who directs the Center forHealth Security at Johns Hopkins University.

The first wave ofreopenings, predominantly in Asia and Europe, are providing a preview of whatcould become a continual process of experimentation and recalibration.

Each policy, likedistancing students at Danish schools or temperature checks at Hong Kongrestaurants, however based in scientific knowledge and calculated cost-benefit,is also a trial of what works, what's worthwhile and what people will accept.

第三段：

Though experiencebought in lives will convert some unknowns to knowns, many questions may remainunanswered for the duration of what is expected to be a one-to-two-year crisis.

That includes whatmay be the hardest but most urgent question of all: What is the value of a lifesaved?

Countries havelittle choice but to guess at stomach-turning ethical calculations. How manylives should be risked to save a thousand people from unemployment? To stop ageneration of kids from falling behind in school? To salvage a sense ofnormalcy?

While Dr.Inglesbury stressed that "there are a lot of principles that are based onpublic health and common sense" to guide us, he also said, "There's no road mapfor this."