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In science class, you probably learned that rust forms when iron reacts with water and air. Now a tech startup is turning that same reaction into a battery. Form Energy calls the clean-energy process “reversible rusting.” The battery takes in oxygen and turns iron into rust to discharge power, then reverses the process to recharge. […]

Key Takeaways Patil co-founded Function to provide a comprehensive preventive health solution. She and her co-founders convinced investors of a long-term vision, in part powered by AI. Now, Function is in its second act, she says — and is valued at $2.5 billion. This as-told-to story is based on a conversation with Pranitha Patil, co-founder […]

Opinions expressed by Entrepreneur contributors are their own. Key Takeaways $700 vs $9,000 isn’t a scam — it’s three different products. Match the tier to your market, or you’ll pay $800 for a problem that needs $4,000 of work. Budget from customer value, not package price. If the math doesn’t justify the retainer several times […]

Key Takeaways LinkedIn has fought low-quality content for years, including scam job postings. AI has made moderating content far harder to manage. AI detection firms estimate that a substantial share of LinkedIn posts and comments now involve AI, though LinkedIn disputed their results. LinkedIn knows it has an AI problem.  Last month, the professional networking […]

Forty thousand dollars is a lot to wait on when you’re running a small restaurant. But that’s exactly what happened to Joy Kim, who spent eight months chasing down money Uber Eats owed her. Kim, who owns Kyoto Teriyaki on Seattle’s Capitol Hill, had been waiting since November 2025 for the company to pay out […]

It may be stalled growth, a customer segment that is not converting or a team issue that keeps resurfacing. Every business owner has a problem they know they need to address. To really solve the problem, business owners need dedicated time to focus, honest feedback from people who understand the stakes and a structured way […]

Opinions expressed by Entrepreneur contributors are their own. Key Takeaways Early validation is not permanent validation — a product that solved a clear need six months ago can quietly drift from the problem it was built to address. What customers say and what they do are rarely the same — trust the behavior over the […]

Opinions expressed by Entrepreneur contributors are their own. Key Takeaways Spend time in the field, where the problems are real. Firsthand exposure reveals challenges and opportunities that rarely show up from a distance. Be ready to change direction. Sometimes the right move is to step back and ask whether your current path still aligns with […]

Mark Zuckerberg published a 6,500-word essay this week laying out his vision for artificial intelligence. The timing isn’t random. Meta is lagging behind in the AI race and trying to catch up to rivals like Anthropic and OpenAI, according to the Wall Street Journal. It also comes as investors grow impatient with Meta’s AI spending, […]