Summers believes that life in the universe is a timeless reality, although he offers no proof to test this hypothesis. Elemental life may exist in places like Europa and tremendous resources may exist like Saturn's lightening.
There are models to articulate the limits and boundaries of science. For instance, Leonardo Da Vinci imagined self propelled cars, the helicopter design, flying machines and scuba diving gear a half millenia ago.
Moving fast forward 500 years, it is not out of the realm of possibility to imagine inventions powered by fusion and teletransport instrumentalities to reach the ends of the universe. Basically, history has shown that any idea that can be imagined can be reduced to commercialization at some future point in time.
The Reality and Spirituality of Life in the Universe by Summers provides interesting assumptions about life on Earth and the vast universes of intelligent life that must exist. Only the passing of time and scientific experimentation can confirm the beliefs Summers has about intelligent life forms, universal knowledge and the evolution of the cosmos.