TLDR Founders 2025-12-10

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Jason Freedman has read 8,000 YC applications. They went back and tested which questions actually predicted success by checking if they would have disqualified the biggest outcomes. What predicted success by a mile was determination. So predictive that YC took it and found five different ways to ask it.

Startups in 2026 will focus on transforming unstructured multimodal data into structured formats, automating cybersecurity tasks to close hiring gaps, and developing agent-native infrastructures for AI workloads. AI will also enhance creative tools for seamless storytelling across media, redefine data stacks with AI-native features, and push traditional systems of record into the background in favor of dynamic agent-led execution environments. Vertical AI will evolve into multi-party collaborations, agents will prioritize machine legibility over human interface design, and personalized experiences will become the norm, culminating in AI-native universities and interactive storytelling worlds.

Make help requests specific, finite, and actionable to increase the chances of receiving assistance. Requests should clearly define the commitment, showing preparation and ensuring the help will be impactful. Avoid open-ended asks and demonstrate you have taken steps on your own, and value the helper's input.

You've got an idea, and you're convinced it's great. You want to start building right now. This is how founders waste months on things nobody wants. PostHog's founders pivoted five times, and most of those ideas never made it past a single conversation. The trap is asking people if they like your idea - they'll say yes just to make you go away. Instead, find out if they've actually had the problem and tried to solve it themselves. If they built some crappy internal system to deal with it, there's probably a business there. If it's not a hair-on-fire problem for them, move on.

Why do brilliant teams often plateau at $20M ARR? It isn't a lack of effort—it's usually a lack of Single-Threaded Ownership. If two people own a goal, no one does. This guide details how to build performance infrastructure: hire for "capacity" (driving initiatives start-to-finish), define specific actions that violate your values (like saying "that's not my job"), and ensure every objective has exactly one owner so performance is always visible.

Your startup needs every advantage it can get - and that means not paying $150K for roles you can offshore. Justworks is making global expansion easier than ever with this exclusive offer: hire international contractors at no extra cost until 2027. Sign up with any Justworks plan now to claim your offer.

Personalize your website to every visitor.

Make your existing CRM autonomous.

Atonomo finds one high-impact conversion optimization each week. They watch session replays, analyze funnels, and prioritize by KPI.

It's normal to feel lonely, scared, or overwhelmed when in the operator seat. You need to build infrastructure around yourself, not just the company. Start building a support structure, and everything will start to feel a little less heavy. Finding support and letting yourself use it is part of the job now.

AI has opened up the potential for real innovation, but founders are still building specialist AI products as if they were building the same subscription software tools of the last decade. Specialization will eventually lose out to simpler systems with more compute and more training data. The businesses that will define this era will be the companies that build what models need to get better, or companies that discover work that's only possible because of AI.

The startup world has a sameness problem.

AI expands what is possible for companies and opens the door to categories that were previously out of reach.

Stripe offered to acquire Airwallex for $1.2 billion when it had $2M in revenue, but the offer was rejected.

Using humans to ask basic questions that AI could answer in seconds isn't diligence in 2025.