I think you summed it up precisely right.
In 1870, can you imagine a person telling someone else that we could have people on the Moon in less than 100 years?
I know Wells came up with his movie, but the rank and file must have thought that was pure lunacy, or at the best Lunarcy...
LOL
I believe we will overcome gravity as some point. There are key discoveries that will change the universe, and we’ll be spellbound by them.
You watch, the age of the universe will be debated and changed in our future. Man is clever, but he has never been able to quantify how clever he is or is not.
And yet along the way, he is convinced he knows it all...
If I had to choose, I think that (and breaking the light speed barrier) would be at the top of my 'bucket list' for this lifetime. If either of those breakthroughs happen within the next 30 years, I may still be around to see it.
I also believe the current estimates for the age of the universe will be amended. I think it's far older than scientists think it is.