Not necessarily. If anything, the more we find out, the more we realise how much we don't know. Take quantum physics, that stuff slowed down since the 1930s.
It's not a bad thing, the journey's always fun too. But let's not kid ourselves that we're close to figuring everything out.
And this shouldn't really be a surprise. Our cultures and societies have had thousands of years of evolution; our human instincts have had at least hundreds of thousands of years. In that time, both culture and instinct have picked up many true facts about the world that have helped us survive. A lot of science has been taking those facts and systematically investigating how far they hold.
So these both can be true: the more questions we ask, the more questions we have to answer, but also that many of the 'easy' hypotheses have been mined out, and any true advance in science will by necessity pull us further and further from the realm where our basic instincts and intuitions can usefully guide us.
Quantum mechanics being the prototypical example, of course.
Like a tree? The main branches are the most visible, and so the most tackled. The smaller branches are only realised when you're deep enough in it. That's where our age's advantage comes in, as we have many more qualified 'explorers' than before, but it also makes it all the more important that the foundational branches are solid.
But then again it may be closer to readjusting our lens. The big questions (of the natural kind, not innovation like AI) today still pertain what we take for granted, like quantum mechanics is making us question the nature of reality again. But much like the discovery of waves once threatened the credibility of light as particles, I'm optimistic that reconciliation can happen, and to ascend to another level ... but where can we stop? When can we say "This is it"?
Just musing..
We are, clearly, close to figuring out most of the easy stuff. For our current definition of "easy" based on the amount of work, computing power and strength of the mathematical tools that we consider normal.
There really are very few edge cases left for QM 2.0