3 ms·
The significance is that the human is being used as the "measure of all things" The scale is based on the ratio to the size of a human being (human being = 1 o
by huxley 11y ago
The significance is that the human is being used as the "measure of all things"
The scale is based on the ratio to the size of a human being (human being = 1 or 10^0), so if we were in the middle that would be why we'd be there, but the Planck Length is 10^-35 and "The Universe" is 10^27 so we aren't actually that close to the middle.
- vorg 11y agoThat's a 10^-8 difference in scale at the top end, though if we use the size of the human brain instead that's 10^-10 difference in scale. We're certain, however, about the Planck length being the smallest scale but not whether "The Observable Universe" is really the greatest distance. If some of the large scale parameters of physics, e.g. the fine structure constant, vary depending on position, then there could be a mathematical limit to the size of the Universe, which could conceivably be 10^10 times the "Observable Universe".