Final answer:
The theory associated with the concept of space developed by Einstein is the special theory of relativity, which introduces the four-dimensional continuum of spacetime.
Step-by-step explanation:
The term that correctly completes the statement '_____ space theory was developed by Newell and Simon' is not directly related to Newell and Simon, as they are known for their work in cognitive psychology and artificial intelligence, not space theory.
Instead, we can discuss a relevant space-related theory from a similar time period. The correct term for a significant space theory developed in the twentieth century is spacetime, a key concept of the special theory of relativity developed by Albert Einstein.
Einstein's theory revolutionized the understanding of physics by showing that space and time are not independent entities as Newton had thought, but are interwoven into a four-dimensional continuum known as spacetime.
This concept is fundamental in modern physics and is essential for understanding the relationship between space, time, speed, and gravity.
Einstein's special theory of relativity introduces this idea by reexamining space, time, and motion, which adds a new level of sophistication to our comprehension of these concepts.
It's important to recognize that spacetime becomes an active participant in the universe, affecting and being affected by matter and energy, according to Einstein's theory of general relativity.
This is a departure from the Newtonian view of space as a mere stage for physical events.