AI prompting, Karpathy's Method

 Stop Prompting Claude. Use Karpathy's Method Instead. - YouTube by Austin Marchese

for getting 10x better results out of AI coding tools like Claude. Instead of relying on random, ad-hoc prompts ("prompting harder"), the method shifts the user's role from a direct coder to an architect or "spec-writer" who manages AI agents through structured planning, verification, and step-by-step execution.

• Move Beyond Vibe Coding / Random Prompting: Relying on spontaneous, unstructured prompts leads to drifting code quality and context limits. Instead, treat AI agents like junior developers or interns that require strict guidance.
  
  
• The Importance of Specifications (Specs): Before letting an AI touch code or write content, start with a rigorous planning phase. Define the core goals, requirements, and user decisions upfront.
  
  
• Agile, Step-by-Step Buckets: Break large projects down into small, manageable components. Build one bucket at a time using a strict cycle:
  
  
  1. Plan: Have the AI propose a detailed implementation plan for approval.
     
     
  2. Checkpoint: Review the output at strict milestones before moving forward.
     
     
  3. Verify: Manually test and verify edge cases (as AI can miss logic gaps, such as unique user ID mappings or hidden edge cases).
     
     
• Verifiability over Specification: As Karpathy notes, AI excels at tasks where outputs can be automatically checked (like code or math). Humans must stay in the loop to handle the "jaggedness" of AI—catching logical flaws that models miss (e.g., the famous AI car wash logic test).
  
  

real estate risk: Florida $3M mansions

 How Are Floridians Affording $3,000,000 Waterfront Mansions on Average Salaries? - YouTube

With median household incomes hovering around $75,000 in Florida, multi-million dollar estates line the coastlines of Miami, Tampa, and Palm Beach... break down the structural financial levers making this possible—from out-of-state migration and cash-out equity lines (HELOCs) to the brutal reality of Florida's property insurance and climate crisis.

The video addresses the disconnect between Florida's median household income (~$77,000) and the prevalence of $3,000,000+ waterfront properties. It concludes that these homes are rarely purchased using traditional earned income; rather, buyers rely on massive equity rollovers from other markets, aggressive leverage strategies, and corporate structures to manage costs.

Key Takeaways

1. Financing Mechanics:

   • Equity Migration: Buyers sell highly appreciated real estate in high-cost northern markets (e.g., New York, Massachusetts) and roll large cash proceeds into down payments.

   • Interest-Only & Alternative Loans: Buyers utilize 10-year interest-only jumbo mortgages to lower initial monthly outflows or rely on DSCR (Debt Service Coverage Ratio) loans that evaluate rental potential over personal tax returns.

   • HELOCs & Entities: Homeowners borrow against existing equity to maintain liquid cash flows, leveraging Florida's homestead laws for asset protection while placing titles under LLCs to write off expenses.

2. Carrying Costs & Risks:

   • Insurance Stress: Rising property insurance costs force high-value home owners into non-admitted surplus lines carriers, with annual premiums regularly hitting $35,000–$50,000+.

   • High Cash Burn: Between interest payments, taxes, insurance, and marine environment maintenance, total non-equity cash burn can reach $25,000 per month.

3. Opportunity Cost:

• The video contrasts purchasing a $3,000,000 mansion against living in a $600,000 home and directing the ~$10,000 monthly difference into an S&P 500 Index Fund, which could compound into roughly $5.9 million in liquid assets over 20 years.

How Are Nurses Affording $1,000,000 Homes in San Francisco on Ordinary Salaries? - YouTube