"Dream1"-How did primitive people calculate it?

Thinking about how to count, a question suddenly appeared: why do humans count?

Such a bold fantasy:

If it weren't for distribution and comparison, or for budget, human beings might not have the idea of counting.

Imagine a primitive man. Will he be bored enough to count the number of items? Maybe not. ...

Then, if a group of primitive people are together, they may need this thing of "counting". A tribe composed of primitive people picked some fruits one day, and if they were not distributed according to the quantity, it might cause anxiety of all parties. Then you have to count it. You and I, if you suddenly find that you have more than me, you may feel sad, too. But only those "smart" primitive people will compare and distribute according to the quantity (and think of a joke: primitive tribal leaders must be good at mathematics). If you are a primitive tribal leader, you have to have a certain budget ability. How can I do without counting? How many wild fruits can you eat a day, and how many days can you eat the collected wild fruits? You have to know something, otherwise how can people go out with you in peace of mind? When you fight different tribes, you must estimate the strength of both sides, otherwise people will beat you up because you can't count!

After bold imagination, primitive people really needed to count and could use numbers.

Living like this, one day, a primitive "mathematician" was born. He may be called the "secretary" (or accountant) of the tribe at that time. The boss said "record the hunting and fruit picking today", so he found some stones (or animal bones). I was inspired to put them on one by one. These stones look like wild boar, so they are placed here accordingly.

If you eat a fruit, throw away a stone. That's good. If only the boss had asked. Imagine, will they have a house? It is specially used for putting stones. It's called "accounting office". Hahahaha ...)

However, with the ability of hunting and picking wild fruits getting stronger and stronger, stones have occupied the financial room and must do something, so another mathematician was born, and the light flashed: "Tie records with vines (or straw ropes!" " How light. "

So I hung a long knot and all the stones in the accounting room were removed. The knot moved in and became the accountant's new toy. It was fun to play with.

But when the rainy season came, some knots were moldy and bad, and the accountant got a lot of them. The most exasperating thing is that one day a captive goat walked into the accounting room and ate the straw rope!

The accountant killed the goat in a rage. Well, I'll record it with your sheepskin and sheep bones! Fiercely carved a string of horizontal bars on the sheep bones (this is purely exaggerated imagination, so don't be surprised by the spectators).

At this time, the development of mathematics took a huge step, which was later called "mathematical symbol"

What happened to the development of mathematics? Will our children experience all this like primitive people? Need to keep dreaming ...