Bayes’ theorem is probably the single most important thing any rational person can learn.
So many of our debates and disagreements that we shout about are because we don’t understand Bayes’ theorem or how human rationality often works.
Bayes’ theorem is named after the 18th-century Thomas Bayes, and essentially it’s a formula that asks: when you are presented with all of the evidence for something, how much should you believe it?
Bayes’ theorem teaches us that our beliefs are not fixed; they are probabilities. Our beliefs change as we weigh new evidence against our assumptions, or our priors. In other words, we all carry certain ideas about how the world works, and new evidence can challenge them.
For example, somebody might believe that smoking is safe, that stress causes mouth ulcers, or that human activity is unrelated to climate change. These are their priors, their starting points. They can be formed by our culture, our biases, or even incomplete information.
Now imagine a new study comes along that challenges one of your priors. A single study might not carry enough weight to overturn your existing beliefs. But as studies accumulate, eventually the scales may tip. At some point, your prior will become less and less plausible.
Bayes’ theorem argues that being rational is not about black and white. It’s not even about true or false. It’s about what is most reasonable based on the best available evidence. But for this to work, we need to be presented with as much high-quality data as possible. Without evidence—without belief-forming data—we are left only with our priors and biases. And those aren’t all that rational.
C’est avec une profonde tristesse que je viens d’apprendre le décès de la Ministre #Aziza Baroud. Je présente mes condoléances les plus sincères et attristées à sa famille, à ses proches ainsi qu’à ses ami(e)s. Le Tchad perd en elle une Très Grande Dame, d’une grande valeur, une femme d'un grand coeur, de conviction et d’engagement. Puisse Allah, dans Sa miséricorde, accueillir son âme dans Son vaste paradis.
.أنا لله وإنا إليه راجعون. الدوام لله
EID Mubarak à toutes et à tous. Qu'Allah accepte Votre sacrifice et vous bénir de Sa Miséricorde.
كُل عام وانتم بخير.تقبل الله منا ومنكم صالح الأعمال
Eid Mubarak to you and your family! May Allah accept your sacrifice and bless you with His mercy.
The reason:
(c) Chad
(i) According to the Overstay Report, Chad had a B‑1/B-2 visa overstay rate of 49.54 percent and an F, M, and J visa overstay rate of 55.64 percent. According to the Fiscal Year 2022 Overstay Report, Chad had a B-1/B-2 visa overstay rate of 37.12 percent. The high visa overstay rate for 2022 and 2023 is unacceptable and indicates a blatant disregard for United States immigration laws.
(ii) The entry into the United States of nationals of Chad as immigrants and nonimmigrants is hereby fully suspended.
Trump signs proclamation to ban travel from 12 countries : The ban will fully restrict entry of nationals from 12 countries: Afghanistan; Myanmar, also known as Burma; Chad; Republic of the Congo; Equatorial Guinea; Eritrea; Haiti; Iran; Libya; Somalia; Sudan; and Yemen.