Better, more efficient, happier

Rocket propulsion has advanced over the years. When rockets first began being launched, jet fuel propelled 2 stages out of earth's atmosphere. Then there were 3 stages, using more fuel. But, fuel is heavy. So, when the shuttle needed a boost to space, attaching the shuttle to a rocket designed just for the fuel to lift it, detach from it, and fall to Earth, became the next step in the evolution of propulsion.

Then, came the era of the space probes being sent to planets, comets, and deep space. They were lighter, so they didn't use as much fuel, and they were going so far that fuel would burn out far before they reached their destinations. So other propulsion methods were used like gravity sling. Now it has been discovered how to generate power in the probe itself to create an ionized power source having very little weight and recreating its own ionized power indefinitely.

Advancement of propulsion of rockets is exactly how indiviual wisdom in life is formulated. Wisdom, like rockets, eventually generates its own knowledge base that works to make us able to live better, more efficient, happier lives. So, when it comes to knowing what is good for our psyches and who we allow to help shape our existence, our latter judgment is far superior to our former.