Rejected Theories That Turned Out To Be Right

Added: 2026-05-05

[00:00:00]Let's get right into it. Number 10, Jamestown cannibalism. In the winter of609, English settlers in Jamestown, Virginia, faced a nightmare. A hurricane had delayed their supply fleet and the few ships that arrived were damaged.

[00:00:13]This began the starving time with harvests failing and trade with the Pohatan tribe cut off. The colonists were trapped in their fort. They ate their horses, then dogs, cats, rats, and shoe leather. Finally, they ate the dead. One survivor wrote of a man who killed, salted, and ate his pregnant wife, for which he was executed. For 400 years, historians dismissed these accounts as propaganda, part of Spain's black legend campaign to discredit English colonization. Then, in 2012, archaeologists found a teenage girl's skull in a Jamestown trash pit. It had precise cut marks on the forehead and cheeks and tentative, hesitant chops on the back of the skull, suggesting the butcher was inexperienced. The jaw was damaged from being pried open. Forensic anthropologists confirmed the girl, whom they named Jane, was cannibalized to access her brain and facial tissue. Her remains were discarded with animal bones, not given a proper burial. The stories dismissed for centuries were horrifically true. Number nine, rogue waves. For centuries, sailors told stories of impossible walls of water appearing from a calm sea. Scientists dismissed these as folklore. Their linear models of wave mechanics showed that a 100 ft wave was a 1 in 10,000year statistical impossibility. They assumed sailors were exaggerating or drunk. But modern steel cargo vessels like the MS Munchin in 1978 kept vanishing without a distress call. The only trace of the Munchin was a mangled lifeboat found 60 ft above the waterline on a piece of wreckage, hinting at the force that struck it. The definitive proof came on New Year's Day 1995. A laser sensor on the Dropner oil platform in the North Sea recorded a single 84 ft wave in a sea of 40ft waves. It was the first time a rogue wave was instrumentally measured. Then in a 3-week period in 2001, a European Space Agency satellite project detected 10 rogue waves over 80 ft tall. The 10,000-year event was happening constantly. These monsters form when wave systems overlap in a process called constructive interference, their energies combining into a vertical wall of water preceded by a deep trough. Number eight, the dino killer rock. 66 million years ago, the dinosaurs vanished. For decades, scientists argued over the cause, with most favoring gradual climate change or massive volcanic eruptions. In 1980, physicist Luis Alvarez and his geologist son Walter proposed a radical alternative, a giant asteroid strike.

[00:02:40]The geology community was outraged, dismissing the theory as a bad sci-fi plot from a physicist intruding on their field. But the Alvarez team had evidence, a thin layer of aridium, a metal rare on Earth, but common in asteroids, found in rock layers all around the world. This layer, now called the KPG boundary, dated to exactly 66 million years ago. The smoking gun arrived in 1991 with the confirmation of the Chickixel crater. Buried under Mexico's Yucatan Peninsula, the 93 mile wide impact crater was made by a 6-m wide asteroid. The impact released 1 billion times the energy of the first atomic bomb, triggering global earthquakes and vaporizing miles of rock. This threw a cloud of superheated dust into the atmosphere that blocked the sun for years, collapsing the global food chain. The sci-fi plot became accepted science. Luis Alvarez died in 1988, 3 years before the crater was confirmed. Number seven, continents a drift. In 1912, meteorologist Alfred Veer noticed the coastlines of South America and Africa fit together like puzzle pieces. He also found that fossils of the same ancient plants and animals existed on continents now separated by vast oceans. To explain this, he proposed that all continents were once a single landmass, panga, that broke apart and drifted. He called it continental drift. The scientific community viciously mocked him.

[00:04:00]Geologists who believed the earth was a solid shrinking ball explained the fossils by inventing hypothetical land bridges that had conveniently sunk into the ocean. They dismissed Veagener's idea because he, a meteorologist, couldn't explain the mechanism for how continents could possibly move. For decades, his theory was a textbook example of fringe science. Veaganner died on an expedition in 1930. His idea a punchline. Vindication came in the 1950s when geologist Marie Tharp began mapping the Atlantic Ocean floor. She discovered a massive 12,000-m long mountain range with a rift valley down its center. Her boss initially dismissed her findings as girl talk. But Tharp was right. The mid-Atlantic ridge was the engine Veaganner was missing, a seam where molten rock rises, hardens, and pushes the seafloor apart, carrying the continents on massive tectonic plates.

[00:04:51]Number six, the universe had a birthday.

[00:04:54]In the 1920s, the scientific consensus was that the universe was static and eternal. So when priest and physicist George Lamemetra used Einstein's own equations to propose the universe had a beginning, scientists laughed. It sounded too much like the book of Genesis, Lmetra argued that since Edwin Hubble's observations showed the universe is expanding, running time backwards would shrink everything to a single infinitely dense point he called the primeval atom. Einstein himself conceded Lamemetra's math was correct but declared his physics abominable. The theory's biggest opponent was astronomer Fred Hy who championed the competing steadystate model. In a 1949 radio interview, Oy sarcastically dubbed Lmetra's idea the Big Bang to make it sound ridiculous. The name stuck. The proof came by accident. In 1965, two radio astronomers, Arno Pensas and Robert Wilson, were trying to eliminate a persistent background hiss from a new antenna. They cleaned the equipment and even removed pigeons nesting in the horn. But the noise remained, coming from every direction in the sky. They had stumbled upon the cosmic microwave background, the leftover heat from the Big Bang itself, the faint echo of creation. Lamemetra lived just long enough to hear his theory was confirmed.

[00:06:06]Number five, jumping genes. In the 1940s, the central dogma of genetics was that genes were fixed stable units arranged like beads on a string. But while studying the color patterns on corn kernels, geneticist Barbara Mcccleintoch saw something impossible.

[00:06:20]The patterns were changing in ways that suggested genes were physically moving.

[00:06:25]She realized genes could jump between locations on a chromosome, turning other genes on or off when she presented her findings at the 1951 Cold Spring Harbor Symposium. The reaction was stunned silence followed by confusion and dismissal. Her colleagues didn't argue, they just ignored her. The idea of a fluid genome was too radical. For two decades, she worked mostly alone, publishing papers few people read. She later said she stopped discussing her work because the chilly reception was too painful. Then in the 1970s, new molecular biology techniques allowed other scientists to finally see what she had seen. They found these transposable elements in bacteria, then fruit flies, then humans. Mcccleintoch had been 30 years ahead of her time. We now know these jumping genes make up nearly half of the human genome, driving evolution and causing disease. In 1983 at age 81, Barbara Mcccleintoch won the Nobel Prize. Number four, your cells are exacteria. Inside almost every one of your cells are mitochondria, the tiny organels that act as cellular power plants. They are also ancient bacteria living as captives within us. This idea called endo symbiotic theory was championed in the 1960s by biologist Lynn Margulus. She pointed out that mitochondria have their own separate DNA distinct from the DNA in our cell's nucleus. They have their own membranes and they reproduce independently by dividing in two just like bacteria. She proposed that about two billion years ago, a larger single-sellled organism swallowed a smaller bacterium, but instead of being digested, the bacterium stayed. It provided a massive energy boost to its host in exchange for shelter. Her paper was rejected by over 15 journals. The consensus was that evolution worked through gradual random mutation, not a sudden bizarre partnership, but the evidence was undeniable. Even today, antibiotics designed to kill bacteria can also damage our mitochondria because at a molecular level, they are still so similar to their free-living ancestors.

[00:08:20]By the 1980s, her theory became a foundational concept in biology. You are not a single organism. You are a walking colony. Number three, zombie proteins.

[00:08:29]In 1972, Dr. Stanley Prussiner watched a patient die from Croitzfelt Yakob disease, a rare condition that riddles the brain with holes, turning it into a sponge. The cause was a mystery. No virus, bacteria, or fungus could be found. Prussener dedicated his career to finding the infectious agent. After a decade of painstaking work, he found the culprit was something thought impossible, a protein. He discovered that a normal protein present in all mammal brains could, for some reason, misfold into a new dangerous shape. This misfolded protein, which he called a pryion, would then act like a zombie, bumping into normal proteins and forcing them to misfold into the same deadly shape. This creates a chain reaction that clumps proteins together, killing brain cells. The scientific community was openly hostile. The central dogma of biology was that infectious agents required genetic material like DNA or RNA to replicate. A protein has neither.

[00:09:25]His grant applications were rejected and his peers called his work career suicide. But Prussener proved his case by showing that only agents that destroyed proteins could stop the infection. In 1997, he won the Nobel Prize. Pryions are now known to cause mad cow disease and similar misfolding mechanisms are suspected in Alzheimer's and Parkinson's. Number two, stomach bug, not stress. For decades, doctors and scientists knew what caused stomach ulcers. stress, spicy food, and excess acid. The treatment was antacids and a bland diet. If the painful burning sores came back, patients were told it was their own fault for being too anxious.

[00:10:03]Then, in 1982, Australian researchers Barry Marshall and Robin Warren discovered something unbelievable. In biopsies from ulcer patients, they found a spiral-shaped bacterium H. pylori living in the stomach lining, a place thought to be a sterile death zone due to its battery acid level pH. When they proposed this bacteria, not stress, caused ulcers. The medical community laughed them out of the room. Their papers were rejected. Frustrated, Barry Marshall took a drastic step. After a baseline endoscopy confirmed his own stomach was healthy. He mixed a broth of H. pylori and drank it. Within days, he was vomiting. A second endoscopy showed his stomach was now inflamed and swarming with the bacteria, the beginnings of an ulcer. He then cured himself with a simple course of antibiotics. This dramatic self-experiment proved the cause and the cure. Still, it took another decade for the medical world to abandon the stress dogma. Marshall and Warren won the Nobel Prize in 2005. Number one, handwashing saves lives. In the 1840s, a woman giving birth in a hospital had a terrifyingly high chance of dying from childbed fever. At the Vienna General Hospital, the death rate in the ward run by doctors and medical students was over 10%, five times higher than the ward run by midwives. Dr. Dr. Ignat Semlvvice was obsessed with finding out why. The prevailing theory of disease was myasma or bad air, but that didn't explain the difference between the wards. Semlvvice noticed one thing. The doctors and students would often come directly from performing autopsies on corpses to delivering babies. The midwives did not.

[00:11:33]He hypothesized they were carrying cadaavverous particles on their unwashed hands. He ordered his staff to wash their hands in a chlorine solution before examining patients. The death rate in his ward plummeted to 1%. He had discovered one of the most important principles in medicine. Instead of being celebrated, his colleagues were outraged. The suggestion that they respected gentlemen of science were killing their patients was a mortal insult. They rejected his data, mocked him relentlessly, and had him fired. The pressure broke him. In 1865, Semlvvice was committed to an asylum where he died two weeks later from sepsis caused by an infected wound on his hand. That's all for today. I'll be making similar videos in the future. Subscribe to see them.