Tit for tat is a strategy which, according to game theory, is the most effective choice for iterated games based on mutual cooperation or defection.
«Under tit for tat, a player will begin by cooperating, then in subsequent iterations will replicate whatever their opponent did last time.»
Math has long been the language of science, engineering, and finance, but can math help you feel calm on a turbulent flight? Get a date? Make better decisions? Here are some heroic ways math shows up…
«Being curious about the world helps us find solutions to problems by bringing new knowledge to bear on old challenges. Math and physics are actually powerful tools for investigating the possibilities of what is out there.»
Loneliness has more to do with our perceptions than how much company we have. It’s just as possible to be painfully lonely surrounded by people as it is to be content with little social contact. Some…
«“Loneliness, longing, does not mean one has failed but simply that one is alive.” — Olivia Laing»
Since focus requires saying no, it also means really smart people and good competitors are saying no to really good ideas.
«This sounds really simplistic, but it still shocks me how few people actually practice this, and it’s a struggle to practice, but is this issue of focus.»
How does Refind curate?
It’s a mix of human and algorithmic curation, following a number of steps:
- We monitor 10k+ sources and 1k+ thought leaders on hundreds of topics—publications, blogs, news sites, newsletters, Substack, Medium, Twitter, etc.
- In addition, our users save links from around the web using our Save buttons and our extensions.
- Our algorithm processes 100k+ new links every day and uses external signals to find the most relevant ones, focusing on timeless pieces.
- Our community of active users gets 5 links every day, tailored to their interests. They provide feedback via implicit and explicit signals: open, read, listen, share, add to reading list, save to «Made me smarter», «More/less like this», etc.
- Our algorithm uses these internal signals to refine the selection.
- In addition, we have expert curators who manually curate niche topics.
The result: lists of the best and most useful articles on hundreds of topics.
How does Refind detect «timeless» pieces?
We focus on pieces with long shelf-lives—not news. We determine «timelessness» via a number of metrics, for example, the consumption pattern of links over time.
How many sources does Refind monitor?
We monitor 10k+ content sources on hundreds of topics—publications, blogs, news sites, newsletters, Substack, Medium, Twitter, etc.
Can I submit a link?
Indirectly, by using Refind and saving links from outside (e.g., via our extensions).
How can I report a problem?
When you’re logged-in, you can flag any link via the «More» (...) menu. You can also report problems via email to firstname.lastname@example.org
Who uses Refind?
100k+ smart people start their day with Refind. To learn something new. To get inspired. To move forward. Our apps have a 4.9/5 rating.
Is Refind free?
Yes, it’s free!
How can I sign up?
Head over to our homepage and sign up by email or with your Twitter or Google account.