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We’re currently in the information age, which is due to silicon. In a few hundred years, this time may reasonably be called the silicon age. Society has only recently transferred to the silicon age from the previous iron age. If we don’t cause a total collapse of our society, then we will be in the silicon age for a few hundred more years, and that will likely include space colonization.
The space age you’re referring to is likely the 60s, when space exploration was beginning. A decade or two isn’t long enough to be considered an age.
You should see an increase, but likely small. Since the end point increased and since the curve only increases between upgrades, that means that all points before the end point must also increase. However, most of the benefit is now granted in the first half of the upgrades possible, so at your level the increase per level will be smaller than it was before.