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I often find people on internet discussion forums who think that science is the only way to determine the truth. But the scientific method does not guarantee truth. Most published research findings are false. People who think science is the only way to obtain information about the universe ignore all of history before the scientific revolution when people developed knowledge and technology without the use of randomized double blind experiments. What would happen if a scientist became lost in the desert or in a jungle? He would be dead in a day or two unless prescientific aborigines found him and showed him how to survive. People have been determining truth for thousands of years, long before the start of the scientific revolution. How could primitive people survive in the wilderness, the jungle, the desert or the arctic if they didn't have accurate knowledge needed to survive? How could prescientific people cross the globe in sailing ships, work metal, tan leather, grow crops, raise livestock, build pyramids, set broken bones, and perform surgery? How could the Romans build aqueducts or the dome of the Pantheon if they didn't have accurate knowledge of architecture?
Below are videos and links that show that ordinary people have been able to determine the truth without being scientists:
Nearly six centuries after it was completed, the dome of Santa Maria del Fiore cathedral in Florence—a cathedral known around the world simply as il Duomo—remains that city's icon and greatest pride. Built without flying buttresses or freestanding scaffolding, using experimental methods that many contemporaries believed would surely fail, the 150-foot-wide (46-meter-wide) dome effectively ignited the creative explosion known as the Renaissance.
A modern understanding of physical laws and the mathematical tools for calculating stresses were centuries in the future. Brunelleschi, like all cathedral builders, had to rely on intuition and whatever he could learn from the large scale models he built. To lift 37,000 tons of material, including over 4 million bricks, he invented hoisting machines and lewissons for hoisting large stones. These specially designed machines and his structural innovations were Brunelleschi's chief contribution to architecture. Although he was executing an aesthetic plan made half a century earlier, it is his name, rather than Neri's, that is commonly associated with the dome.
This video shows how the dome was built and explains why it is such a tough engineering problem: