Until we unlock the technology, it will seem impossible

In ancient human history, traversing the globe seemed impossible and nearly was, because of the limited technology and understanding of the population.

Now we can travel the globe in hours via air travel. Something just 100 years ago took weeks/months takes hours.

As we grow to understand our universe and the complex ways gravity and other forces of nature work, I believe travelling the vastness of space, which now would take light years, may someday become as easy as booking a flight on Expedia.