Economist, Upenn management prof , author, science & sci fi buff, policy wonk. Now favoring dolphins as the best hope for intelligent life in the universe.

Joined June 2012
This New York Times letter to the editor is really disturbing. What an incredible, diabolical plot, the scale of which is astounding. #KrakenIncoming #KrakenReleased #KrakenOnSteroids #KrakenDay nytimes.com/2020/11/25/opini…
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Donald Trump tonight incited violence. Is there a single member of his administration, a single elected official of his party, with the courage, decency and patriotism to step up now and say to his supporters: "Whatever the election results: No mobs. No lawlessness. No violence."
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The off-campus parties are the weak link in the campus reopening plans. washingtonpost.com/politics/…
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Very little surprises me, but this is worse than I could have possibly imagined.
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8/9 He cannot understand selflessness because he is selfish. He cannot conceive of courage because he is a coward. He cannot feel duty because he is disloyal.
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If we had a normal president—Obama or Bush, Jeb or Marco or Ted or Carly, Hillary or, yes, Bernie—we would have contained and rolled back the virus, and businesses, schools, and college football would be reopening. Trump alone could have mishandled the pandemic so disastrously.
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I'm aware of this from the moment I wake up to the moment I fall asleep. It is the truth, and it is absolutely devastating.
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I was going to do a thread on how to understand the risks of Covid-10 infection. But it all got too complicated, so I’m going to summarise what I have read by tweeting a bit about something else: Bats. And why knowing about bats helps you know about Covid.
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Do it
Impeach Bill Barr. Pass it on.
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Old enough to remember when we worried if Trump would leave if he lost. Now he should worry he won't be able to last to election day.
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This is an awful man, waving a book he hasn’t read, in front of a church he doesn’t attend, invoking laws he doesn’t understand, against fellow Americans he sees as enemies, wielding a military he dodged serving, to protect power he gained via accepting foreign interference...
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As a show of understanding the pain that is in our community and our nation regarding equality, the #FayPD took a knee to show that we also stand for justice for everyone. We are committed to listening and treating everyone with dignity and respect. #LoveONE
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Mike Pence spent time and money flying to Indianapolis, had security prepare a spot in a football stadium, and walked out before the first quarter because he wanted everyone to know a quiet, peaceful protest against police killing unarmed black men was deeply offensive to him.
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And he never stopped. When I went to the “Normal Heart” revival there was a man outside the theater handing out pamphlets about AIDS prevention. Most people ignored him but I stopped. Because it was Larry Kramer, outside his own play.
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Not for health.
Replying to @dick_nixon
Did you ever tell a voter to go drink bleach, sir?
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A star is born. Bravo.
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The best way for Trump to get people to cease and desist from quoting him looking so dangerously incompetent is for him to cease and desist from being so dangerously incompetent.
The Trump campaign seriously just issued a cease and desist for this ad so I'm doing my part and sharing it as widely as humanly possible.
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Intergenerational transmission in one graph.
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