Another Grinding Session

The tea was ready.

A fine mist floated out of the teapot.

The old man picked up his cup and had a sip of tea before he started to talk.

"Out of all of the partial differential equations, the Navier-Stokes equation is probably the most difficult one. We cannot directly apply the partial differential equation theorems on the Navier-Stokes equation, we can only get an approximation.

"From what I know, the Clay Institute has been researching the turbulence phenomenon. Although they have produced some results, they were nothing impressive.

"The plasma turbulence that you want to study is even more difficult. First of all, there isn't a computer that can handle that kind of calculation. Secondly, we can't obtain accurate observation data. We can only rely on inaccurate data."

Lu Zhou asked, "Why?"