But this is a state of art artificial leg.

但这是一条最先进的假肢。

But in terms of motivation since, is the fact that what defines sort of a high-performance computer or supercomputer such a moving target where state of art today is yesterday's news three years from now?

但从动机角度来看，高性能计算机或超级计算机的定义标准是否此多变，以至于今天的顶尖技术在三年后就成了昨日黄花？

This is a $1 trillion project and they're estimating that it's going to cost even more because all of these technologies still have to be developed and they're really trying to get the state of art for everything.

这是一个价值1万亿美元的项目，他们估计成本高，因为所有这些技术仍需开发，而且他们确实在努力为每项技术达到最先进的水平。