Try humming while pinching your nose and keeping your mouth closed. You won't be able to do it because humming requires air to escape through your nasal passages.
Consider this: The number of possible unique chess games is estimated to be around 10^120, a figure known as the Shannon number. To visualize the scale, there are only about 10^80 atoms in the observable universe. This means the complexity of chess exceeds the number of particles in existence.
Cleopatra lived closer in time to the release of the first iPhone than to the construction of the Great Pyramid of Giza. The pyramid was built around 2560 BCE, she died in 30 BCE, and the iPhone launched in 2007. This illustrates how our perception of historical eras can be surprisingly distorted.