More computing power invited a bigger human question.

How would people interact with the dynamic simulation that advanced computing could make possible?

Howard Pearlmutter's NASA work included a seven-hundred-page study, Interactive Computer Graphics: The Human Interface to Dynamic Simulation.

His background also includes parallel computing for NASA Ames and supercomputer research at MIT's Laboratory for Computer Science, where he was employed in 1979.

The human interface and the underlying computation belonged to the same field of possibility.

A simulation becomes useful through an encounter.

Someone has to inspect it, understand a relationship, change a condition, or connect its behavior with a question.

That makes representation and interaction part of the work. A powerful calculation and a useful human instrument are connected achievements.

The sources describe research and architectural ambitions. A historical performance target is not an achieved benchmark, and the significance of the work does not require turning it into one.

A recurring connection across the career

Howard later built software that made complex factory designs inspectable for executive due diligence and signoff. GM, Ford, and other major automakers needed that capability. He completed the commercial animated virtual-reality web system in nineteen weeks and wrote all its application code.

The settings differ, but a useful relationship recurs: technical capability becomes more valuable when people can see and use what it means.

Bring that question to a new creation.

Your subject may be smaller, more familiar, or entirely different. What could become possible if a person could inspect a hidden relationship or interact with a model directly?

Read representations, combinations, and a first sketch.

For practical exploration, see teams and a guided encounter.