It can be a frustrating experience when no one listens to you. Especially, when you're right. The stakes are pretty low for you, but imagine you're a scientist who has discovered a cure for disease, or an army general about to go into battle. You shout from the rooftops, but no one believes you... until it's too late.
Here is a list of 33 people who deserve the 'I told you so' badge.
1. Rick Rescorla predicted the 9/11 attacks years in advance, after the 1993 World Trade bombing. He believed the World Trade Center was still a target for terrorists, and the next attack would involve a plane crashing into one of the towers.
He died that day reentering the south tower to get out more survivors.
2. John Lennon believed the US government was spying on him. People brushed this off as paranoia and ego, but thanks to the Freedom of Information Act, we've learned that he was completely correct. Nixon was looking for a reason to deport him.
3. Kotaku Wamura, the Japanese mayor of Fudai, predicted a tsunami would destroy the town so, he built an anti-tsunami wall and floodgates. At first it was mocked, but 50 years after he died a tsunami hit the town and the wall saved the city.Source
4. Barry Marshall believed that peptic ulcers were mainly caused through bacterial infection and not as previously believed, by stress, spicy food and too much stomach acid. He was ridiculed by the scientific community who said that the acidity of the stomach was so high that bacteria couldn't live.
So, he drank a culture of H. pylori, 14 days later once it was confirmed that his stomach was now massively colonized by the bacteria. He started taking antibiotics and all returned to normal.
5. Marie Tharp used her work on mapping ocean floors to help discover and propose plate tectonics to explain continental drift. She was ignored and laughed at for quite a while. Years later her data, along with fellow scientist Bruce Heezenm, discovered the Mid-Atlantic Ridge. This was key to solidifying the continental drift theory originally put forth by Alfred Wegener.
6. Humans have known lead is dangerous since Roman times, but geochemist Clair Patterson had to prove it was bad to put in gas and food cans. After 20 years of campaigning, people finally listened and they saw an 80% decrease in lead levels in the blood stream of Americans.