A recent podcast broke down a few sectors that are suddenly packed with new startups. Space investing is getting crowded. Startups are raising money at massive valuations, like Sierra Space recently hitting $8 billion. Defense contractors like Moog are probably safer bets than pure space startups. A lot of companies in satellite communications and imaging will likely fail since there are too many players chasing limited revenue. Nuclear power is another crowded trade right now. The hype is mostly driven by AI data centers needing massive amounts of energy. Startups like NuScale and Oklo are trying to build small modular reactors to sell power directly to tech companies. The consensus is to be careful here. Nuclear projects notoriously run over budget and take too long, so a lot of these pre-revenue startups might go bankrupt before they actually build anything. They also touched on a few other stories. Bill Ackman is trying to raise $5 to $10 billion for a new Pershing Square closed-end fund. Meanwhile, EV aviation startups Joby and Archer are busy suing each other over corporate espionage. This infighting might mean their actual market size is much smaller than expected.