It absolutely is. Space is stupidly vast, and our fastest theoretical speed is stupidly slow. And even the energy requirements to get to an even reasonable percentage of the speed of light is stupidly high.

Still, we're still in diapers in terms of technology that isn't impossible. We still don't have a good way to explore our very own solar system, even our closest neighbor. We don't have the means to do long-term power in space, to build on other planets, etc.

I think the next century is going to be just that, spearheaded soon by Starship hopefully. Develop the tech to stay out there longer, further, reliably, sustainably. Only then, with some major improvements in propulsion tech, we might start looking at interstellar travel.