NASA chief suggests SpaceX may be booted from moon mission

1. What is a "reasonable cost," and who decides?

Reasonable cost is subjective, but NASA’s budget provides perspective. At 0.4 percent of the US federal budget, it amounts to just 27 billion dollars in 2023, while the defense budget is 842 billion dollars, or 13 percent of annual spending. Redirecting just 5 percent of defense funding, about 40 billion dollars, would more than double NASA's budget and allow for significant progress on Moon and Mars projects. This minor reallocation would not impact national security, making space exploration both affordable and worthwhile. When we consider the technological, scientific, and economic benefits, investing in space stands out as a smart, future-focused decision.

2. Are there any minerals on the Moon worth exploring?

The Moon holds valuable resources like helium-3 for clean fusion energy, water ice for fuel and life support, and rare earth metals for advanced technologies. Helium-3 could power nuclear fusion reactors and potentially yield trillions of dollars in energy benefits. Water ice can be converted into hydrogen and oxygen, creating rocket fuel that reduces reliance on costly Earth resupplies for space missions. Mining rare earth metals on the Moon could also lessen our dependency on Earth’s finite resources and help minimize ecological damage caused by terrestrial mining. The long-term financial value of these resources far outweighs the costs of extracting them.

3. Will Moon and Mars bases actually double NASA’s existing budget?

This claim is incorrect. The Artemis program, for example, is projected to cost 93 billion dollars over more than ten years, with yearly spending far below doubling NASA’s current 27 billion dollar budget. Additionally, technologies like reusable rockets, such as SpaceX’s Starship, have lowered launch costs by 90 percent, making Moon and Mars exploration increasingly achievable. With international collaborations and private investment, developing these projects is far less expensive than critics often assume, and will not significantly burden taxpayers.

4. What about other technologies, like AI or synthetic biology?

While AI and synthetic biology can offer exciting short-term benefits, they focus on Earth-based solutions and neglect humanity's long-term survival. Space exploration addresses critical long-term challenges, such as resource scarcity, reducing dependence on Earth, and avoiding extinction-level threats. Unlike efforts in Earth’s hostile environments like Antarctica or the deep sea, Moon and Mars exploration unlock completely new resources and pathways for innovation. Delaying investment in space exploration risks stagnating progress, and waiting for the "perfect time" could mean missing transformative opportunities that secure humanity's future.

1) Reasonable cost is what taxpayers/voters are willing to give. If you want a $100bn NASA budget, you are basically asking every American for $200/y. If you made that optional, I'd argue that a lot (most) Americans would not be willing to pay.

2) I see no probable route for fusion reactors to become a competitive source of terrestrial electricity for at least the next 50 years and possibly never; without that, Helium-3 is mostly worthless (even if your fusion bet works out, you rely on an approach winning that actually needs He3 instead of breeding its own Tritium). For everything else, I don't see extraterrestrial mining being able to compete with current prices, and any significant influx would have it crash/undermine its own market (e.g. we only extract hundreds of tons of palladium globally, per year; doubling the supply would have a major effect on price).

3) I'd argue that current Moon/Mars project are mostly ineffective showmanship/PR. If you actually wanted somewhat self-sustaining settlements/industry within the century, costs would easily eclipse our current defense budget, and without demonstrating the ability to build that on earth first the whole thing would not be credible anyway.

Our current approach to manufacturing (post industrialization) is totally incompatible with self-sustaining colonies, too. There is nothing we could realistically achieve on moon or mars even in a century that is anywhere close to self-sustaining, without basically reinventing how we build things.

So from a risk mitigation point of view the whole endeavour is useless, too (this might change within a century-- synthetic biology specifically would be very promising here).

Reasonable Cost

1. You didn’t address my main argument: reallocating 5% of the U.S. defense budget to NASA could double its budget without raising taxes. Instead, you reframed it as additional taxation. My point is about redistributing current resources, not increasing taxpayer obligations.

2. Do you believe reallocating 5% of defense spending would harm national security? Or could it be a reasonable way to reprioritize national spending towards long-term scientific advancement?

Moon Resources

1. You claim extraterrestrial mining could "crash the market," but cheaper, abundant resources typically foster innovation and develop new industries (e.g., space-based solar power or advanced batteries), which could benefit consumers. Can you provide examples where resource surpluses caused economic collapse instead of creating opportunities?

2. You argue helium-3 is "mostly worthless" because fusion is 50+ years away. However, companies like Helion Energy predict commercial fusion by the 2030s, and technologies like aneutronic fusion could make helium-3 a critical resource. What specific evidence supports your lengthy timeline?

Effectiveness and Feasibility of Moon/Mars Projects

1. You claim Moon/Mars projects would exceed the defense budget but provide no data. NASA’s Artemis program, for example, is projected to cost $93B over a decade, far below $842B in annual U.S. defense spending. What data supports your claim of higher costs?

2. Reusable rockets, such as SpaceX’s Starship, have already reduced launch costs by up to 90%, directly countering your cost concerns. Why did you not address this?

3. Advancements in in-situ resource utilization (ISRU), 3D printing, and automated production are already paving the way for sustainable off-world colonies. Why do you dismiss these technologies entirely when critiquing the concept of self-sustainability?

4. While you note "showmanship" is a factor, history shows symbolic exploration fuels technological advancement. Apollo, for example, spurred breakthroughs in computing, communications, and materials science. Moon/Mars exploration could provide similar transformative benefits.

Comparison to AI and Synthetic Biology

1. You claim synthetic biology is more promising than space exploration, but can you provide evidence to support this? Space exploration directly addresses existential risks like resource scarcity and planetary threats.

2. Do you agree that space research fuels advancements in robotics, AI, and materials science, which vastly benefit Earth and humanity’s long-term survival? Why can’t space exploration and other emerging technologies work together to create a stronger foundation for humanity’s future?

3. Delaying space exploration may result in lost opportunities for innovation that could directly impact Earthly and extraterrestrial problems.

Conclusion

You raise important points, but much of your argument lacks supporting evidence and is based on speculation. I encourage further consideration of current research and advancements like reusable rockets, ISRU, and fusion energy, which prove the feasibility and value of space exploration. I appreciate your thoughts and look forward to continuing the discussion.