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Sebastian Fischer
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Sebastian Fischer, co-founder and CEO of YC-backed Wardstone, is building satellites carrying space-based interceptors to defend against hypersonic missiles. He explains why the current defense was designed for older threats, how Wardstone aims to cut the cost per kill, and why he started the company after Cruise shut down in April. In this episode: • What does Wardstone do? • What is the Golden Dome? • Why is hypersonic defense so expensive? • What did Wardstone demo at YC? • How does AI fit in
Best quotes
Our vision is that like there will be a constellation of satellites that has this this product called a space-based interceptor on it.
If you need to shoot down one hypersonic missile, that's a significantly like smaller, simpler um constellation of satellites than if you need to defend against a larger number.
Check us out wardstone.space. That's where we are online.
FAQ
What is Wardstone?
Wardstone is a YC F25 company co-founded by Sebastian Fischer that builds satellites designed for hypersonic missile defense.
Why did Sebastian Fischer decide to start Wardstone?
After Cruz shut down and realizing he wanted more purpose than a comfortable big tech lifestyle, Fischer identified hypersonic missile defense as one of the biggest opportunities to build a meaningful deep tech company.
What is the difference between Israel's Iron Dome and America's Golden Dome?
While Israel's Iron Dome defends against missile warfare over its smaller country, America's Golden Dome faces greater technical challenges to protect the entire United States and will incorporate a space defense layer consisting of a constellation of satellites.
What countries are the US building these defense systems against?
The US is building these defense systems to defend against adversarial missile threats from countries like Russia, Iran, China, and North Korea.
What are Wardstone's upcoming milestones for technology demonstration?
Wardstone has a suborbital launch scheduled in the Mojave Desert in late April and aims for an in-space intercept demonstration in the 2028 to 2029 timeframe.
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