Number of Planck volumes in the observable universe

This is the largest number that can be directly applied to observations of our 3 spatial dimensions.

On the scale of this number, ‘1’ corresponds to the Planck volume - the smallest space physically possible. Each side of a plank volume is called a Planck length, this is attributed to wavelengths, temperature & energy. The reason for this is that if an object is heated, it radiates different wavelengths (sine waves that are core to observation) than it was beforehand, the differences created include: - Length. Each wave will take up less space, these short waves are used to observe small spaces. - Energy. Each wave will take up more energy, this interferes with observations. At first the interference does not definitively limit how small an object can be observed but if a certain threshold based on e=mc^2 is met, the energy creates a kugelblitz (black hole). Therefore, nothing can be observed smaller than a plank length or volume.

The Planck volume (1) helps define a scale for the number at hand, allowing it to equate to the total Planck volumes that have emitted wavelengths to us.