If the United States commits to the goal of reaching Mars, it will almost certainly do so in reaction to the progress of other nations - as was the case with NASA, the Apollo program, and the project that became the International Space Station.
Interpretation
The quote emphasizes that the U.S. space exploration efforts are often motivated by competition and progress made by other nations.
Neil Degrasse Tyson's quote suggests that the pursuit of ambitious goals, such as reaching Mars, is typically driven by a response to the advancements made by international competitors. Historically, the United States' achievements in space exploration, including the Apollo program and the development of the International Space Station, were catalyzed by the need to respond to the technological developments of other countries. This underscores the importance of competition in pushing the boundaries of innovation and exploration.
In practice
In a speech about future space missions, one might quote Tyson to emphasize the need for national commitment to space exploration.
The problem is that many people operate on the assumption that NASA should go to Congress every year with hat in hand and justify it every year. Well, I see it as the greatest economic driver that there ever was. Economic drivers don't need justification.
The press still thinks [global warming] is controversial. So they find the 1% of the scientists and put them up as if they're 50% of the research results. You in the public would have no idea that this is basically a done deal and that we're on to other problems, because the journalists are trying to give it a 50/50 story. It's not a 50/50 story. It's not. Period.
As a scientist, I want to go to Mars and back to asteroids and the Moon because I'm a scientist. But I can tell you, I'm not so naive a scientist to think that the nation might not have geopolitical reasons for going into space.
In just one year, the expenditure of of the U.S.'s military budget is equivalent to the entire 50-year running budget of NASA combined.
One of my great laments is that education today seems to have... be less about passion and more about process, more about tactic or technique.
Lots of people think, well, we're humans; we're the most intelligent and accomplished species; we're in charge. Bacteria may have a different outlook: more bacteria live and work in one linear centimeter of your lower colon than all the humans who have ever lived. That's what's going on in your digestive tract right now. Are we in charge, or are we simply hosts for bacteria? It all depends on your outlook.
When you look at the light bulb above you, you remember Thomas Alva Edison. When the telephone bell rings, you remember Alexander Graham Bell. Marie Curie was the first woman to win the Nobel Prize. When you see the blue sky, you think of Sir C.V. Raman.
That which is not measurable is not science. That which is not physics is stamp collecting.
Whenever we find, in two forms of life that are unrelated to each other, a similarity of form or of behaviour patterns which relates to more than a few minor details, we assume it to be caused by parallel adaptation to the same life-preserving function.
The scientific community should work as hard as possible to address major issues that affect our everyday lives such as climate change, infectious diseases and counterterrorism; in particular, 'clean energy' research deserves far higher priority. And science and technology are the prime routes to tackling these issues.
Dissections daily convince us of our ignorance of the seats of diseases, and cause us to blush at our prescriptions. How often are we disappointed in our expectation from the most certain and powerful of our remedies, by the negligence or obstinacy of our patients! What mischief have we done under the belief of false facts and false theories! We have assisted in multiplying diseases. We have done more — we have increased their mortality.
All models are wrong, and increasingly you can succeed without them.
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