Earlier quoted context omitted.
But the same was 100,200,300 and so years ago. Thete were always some sort of limitations, mostly technological. I'm not saying that we'll build solar system size colliders any time soon, however 50-100 more years and we should be much much more sophisticated in terms of what we can do in space and back on the earth.
Linear extrapolation is not always adequate. I tend to agree with GP that we may be close to a saturation point.
Which leaves the obvious path forward...