April 20 2016 at 01:06AM

Today I Learned: 1) What an opal looks like. It's a lot less creamy and a lot more scintillating than I thought. 2) There are live streams on Youtube. Here's one of an albatross nest: https://www.youtube.com/watch?v=KMdKKpXSMVU 3) The "principal-agent dilemma" is the economic term for the problem when one person/party (the agent) makes decisions for another person/party (the principal), even though the agent's incentives might not be completely aligned with that of the principal. This problem is, as you might imagine, everywhere. Examples include a politician making decisions on behalf of his or her constituents; an employee negotiating a contract on behalf of a company; and a parent making a decision for a child.