Ideograms. We've gotten better at them.

So we understand an ideogram as a character or symbol that represents a complete idea. We, as humans, have been using them for thousands of years. Sometimes, in history, a combination of many ideograms are required to tell a story. Sometimes, it's just not very easy to interpret just what the ancient peoples of this earth had to say.

we think it's agricultural...

But we've had lots of practice. Many years of refining our technique has given us the ability to apply one basic symbol combination and provide us complex ideas and/or instructions.

Smoke in front of this sign and take a cell phone picture to become cool.

Do not wrestle with; your kung-fu is not yet strong.

Then again, maybe is hasn't...