Why are Asians smart?

It's more about diligence.

'Asian' encompasses around two thirds of the Earth's population... do you mean all of them or something more specific?

That's something of a stereotype. Not all Asians are smart, but all have the concept of hard work drilled into their heads at a young age, even if raised here in America. All are pushed to do very well in primary/secondary school and college. There are such things as dumb Asians, and Asians of average intelligence, we just don't see them as often here in the States. Even among 2nd and 3rd generation Asian Americans, they still work very hard with their schooling and later their jobs. You're more likely to find the not-so-smart Asians in their native countries than outside of them.

My Asian wife says hi.

Cultures are very different then one another.
Some are hard working and very driven while others are more lazy and live off the land type

Before high speed travel these cultures were given a slice of land and we could see what accomplishments they did for themselves.

Today you see some going into space and creating medicine while other still throw rocks during war.

Asians look at their children's future as their accomplishment or failure.

Child becomes doctor or a person of a respectable position then you succeeded.
Child works fast food and will never have a career. then you failed.

Very strict. dont talk to me until you doctor.

Since script isnt taught anymore. It's the Asian students primarily learning it on their own. And everything needs to be perfect... looks like a computer some of these hand writings.

Combination of good genes/DNA, an inherited strong work ethic (in school), an inherited desire to succeed, and all of this re-enforced by strong role-models in their family.

Man will I ever be crushed by Political Correctness if I even try to tiptoe around the fact that some other cultures / races just simply don't have this. But Political Correctness / Wokeism teaches them to instead blame "White Privilege" and racism for all of their shortcomings.

OK, whatever. I'm not buying it.

It all comes down to genes, work ethic, and the role models, or lack thereof, in their genetic tree. Yes there are exceptions in every person and every family, but in "general", this is the origin of success / intelligence within cultures/races.

Asians aren't smart. Specific asian cultures (Chinese and Japanese) put a strong emphasis on good grades. So they're not lazy. They do what we all could do if we applied ourselves.

The smartest people are actually white Americans and White British, followed by Italians. I say this purely on their inventiveness and creativity.

They created the modern technological world.

Countries like Japan emphasize education. This is from a Wikipedia article describing the elementary schools in that country:

The school year in Japan begins in April and classes are held from Monday to either Friday or Saturday, depending on the school. The school year consists of two or three terms, which are separated by short holidays in spring and winter, and a six-week-long summer break.
https://en.wikipedia.org/wiki/Education_in_Japan

A six-day school week and fewer holidays and breaks make a big difference. One time I was talking to a young woman who was working at a Target store; she was from Germany and spoke English very well. I had no idea she was foreign-born until she mentioned it. She said she couldn't believe it when she first came to the U.S. and heard kids talking about "summer vacation." The concept of taking almost three months off from school was unheard of in her country.