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But for every insight into COVID-19, more questions emerge and others linger. That is how science works. To mark six months since the world first learnt about the disease responsible for the pandemic, Nature runs through some of the key questions that researchers still don’t have answers to.


From immunity to the role of genetics, Nature looks at five pressing questions about COVID-19 that researchers are tackling. Six months into the outbreak, Nature looks at the pressing questions that researchers are tackling.

“Even though we are living during unprecedented, challenging times, the spirit and resolute will of our country and all Americans has never been stronger.”

NASA Astronauts Chris Cassidy, Doug Hurley, and Bob Behnken, the three Americans living in space, paused this week to commemorate the nation’s 244th birthday. They shared this message, featuring the famous flag that flew on the first and last space shuttle missions and will be returned to Earth by Hurley and Behnken later this year.

What money should be has been explored by more than one economist. What it is, strange as it may sound, is also up for debate. Yet amidst these disputes, practical and abstract, there is consensus.

At this time the entire crypto market is valued between 380 and 560 billion USD. The value of all the world’s stocks is around 70 trillion USD. The daily volume of the Forex is 5.1 trillion USD. Despite the excitement it periodically sparks in mass media and high finance circles, crypto is barely a drop in the bucket.

As I stated in my response to Robert Shiller’s critique of Bitcoin, tokenization is a means of dividing an asset. Tokenization, easily dividing an asset among stakeholders, is a strength of blockchain technology. Tokens can represent abstract entities issued on the blockchain, but they can also be tethered to a piece of real estate, a work of art, a trademark, or a freighter of Chilean copper.