0 & then Sum ...

Gradient

When looking at this "wonderful" pix taken by yours truly, the relationship of infinity to zero applies as said entities are complimentary to each other as one requires the other in order to become complete, something beautifully illustrated by the Yang/Yin symbol showing the two forever transitioning from zero to infinity while, at the same time, possessing some of the characteristics of the other depicted by dots of opposing color residing in the center of each. 

Yin and yang (/jɪn/ and /jæŋ/), yinyang,[1][2] or yin-yang[3][2] is a Chinese philosophical concept

that describes opposite but interconnected forces. 

With this in mind, it seems 0's are hardwired into the brain because zero, like infinity, journeys to forever, a concept really hard to let go of without question. :)

Around 2,500 years ago, Babylonian traders in Mesopotamia impressed two slanted wedges into clay tablets. The shapes represented a placeholder digit, squeezed between others, to distinguish numbers such as 50, 505 and 5,005. An elementary version of the concept of zero was born.

Hundreds of years later, in seventh-century India, zero took on a new identity. No longer a placeholder, the digit acquired a value and found its place on the number line, before 1. It's invention went on to spark historic advances in science and technology. From zero sprang the laws of the universe, number theory and modern mathematics.

“Zero is, by many mathematicians, definitely considered one of the greatest — or maybe the greatest — achievement of mankind,” said the neuroscientist Andreas Nieder, who studies animal and human intelligence at the University of Tübingen in Germany. “It took an eternity until mathematicians finally invented zero as a number.”

Mark Belan/Quanta Magazine

Perhaps that’s no surprise given that the concept can be difficult for the brain to grasp. It takes children longer to understand and use zero than other numbers, and it takes adults longer to read it than other small numbers. That’s because to understand zero, our mind must create something out of nothing. It must recognize absence as a mathematical object.

“It’s like an extra level of abstraction away from the world around you,” said Benjy Barnett(opens a new tab), who is completing graduate work on consciousness at University College London. Nonzero numbers map onto countable objects in the environment: three chairs, each with four legs, at one table. With zero, he said, “we have to go one step further and say, ‘OK, there wasn’t anything there. Therefore, there must be zero of them.’”

Factoid, The ancient Greeks hated the notion of zero. This is why Zeno's Paradox works. :)

Achilles and the tortoise

Everything's connected. 

Hunter's Moon