@grok Using X’s own open‑sourced algorithm, explain why the “For You” feed boosts disinfo & low‑credibility content. Show how engagement‑based ranking, reaction multipliers, and the absence of credibility scoring cause disinfo to outrank more credible and valuable posts.

"Science can flourish only in an atmosphere of free speech." — Albert Einstein

“Absence of evidence is not the evidence of absence.” -- Dr. Carl Sagan (1934 - 1996)

Perfect timing and powerful winds combined to produce a stunning rare rainbow waterfall in Yosemite

“Man is the most insane species. He worships an invisible God and destroys a visible Nature.” — Hubert Reeves

Physics 🔥

Scientists discovered that octopuses sometimes punch fish for seemingly no reason at all

This stunning 1935 Duesenberg Model J is one of the rarest and most luxurious American cars ever built. It could hit over 120 mph. Only 481 Model J chassis were ever built, and this double‑cowl Phaeton by LeGrande, designed by Gordon Buehrig, is one of just 15 of its kind.

A beautiful @NASAHubble image of NGC 7722, a lenticular galaxy located about 187 million light-years away.

Route 163 Through Monument Valley in Arizona 😲😍

This is a gray Ezo squirrel, a subspecies of the Eurasian red squirrel found on the Japanese island of Hokkaido

The word “algebra” comes from the Arabic word “al-jabr”, which means “reunion of broken parts” or “restoration”. This term was used by the Persian mathematician Muḥammad ibn Mūsā al-Khwārizmī in his 9th-century book “Kitab al-jabr wa al-muqabala”, which introduced methods for solving equations and laid the foundation for modern algebra. The word “algebra” was later translated into Latin and other languages, and gradually expanded to cover a wider range of mathematical topics and concepts.

The world according to fish

Treebonacci

Why Jupiter Appears to Move Backward in the Sky Have you ever gazed at Jupiter and caught it doing something weird?For months at a time, the Solar System’s giant seems to defy logic — it slows to a stop, then glides backward across the stars in a motion called retrograde. It looks almost magical… or even wrong. But it’s one of the most beautiful illusions in astronomy.Right now, Jupiter is in retrograde from November 11, 2025, to March 10, 2026 — about four months of apparent backward travel.Here’s the real story:Earth is the faster runner, orbiting the Sun quicker than Jupiter. As we lap the giant planet (like a sports car overtaking a semi-truck on the highway), our shifting viewpoint creates the illusion. From Earth, Jupiter appears to pause, reverse direction, and loop back against the starry backdrop. Once we pull ahead far enough, it resumes its normal eastward motion.Jupiter itself never stops or turns around. It keeps cruising forward at over 47,000 km/h in its massive orbit. The backward drift exists only in our perspective.This celestial dance has mesmerized humans for millennia. Ancient skywatchers saw omens and mystery in it. We now see one of the clearest, most elegant proofs that we live on a moving planet in a moving Solar System.So next time you spot that brilliant white “star” in the night sky, remember: you’re watching Earth overtake the king of the planets in real time.

Farmers have figured out that the cheapest pesticide is a strip of flowers. When you plant wildflowers through a crop field, not just around the edge but in strips running through the middle, you get ladybugs, lacewings, hoverflies, and parasitic wasps living in the field instead of visiting it. They eat the aphids, the caterpillars, and the mites for free, all summer long. In controlled trials, fields with tailored flower strips had leaf-beetle numbers 40 to 50% lower and crop damage cut by around 60%, enough to drop below the threshold where spraying was even considered worth it. The flowers attract a standing army to our fields. We spent decades engineering chemicals to kill the insects eating the crop, when the insects that eat those insects would have worked for the price of seed.

Last nights incredibly bright rainbow during golden hour at Stonehenge 😍🌦️🌈🔥 Photo credit Nick Bull 🙏 #rainbow #RainbowMagic #showers #spring #May #drone #beautiful #rain

The magical Stuðlagil Canyon in Iceland looks like another planet. 📽: h0rdur/ig

The rock art site of Fontainebleau contains numerous depictions of a mysterious antlered god. This could suggest that Cernunnos was worshipped in the Paris basin as early as the late bronze age.

A panoramic view from the surface of Mars captured by Curiosity rover.