
Clearer Thinking with Spencer Greenberg Can you do 100x more good? (with Sjir Hoeijmakers)
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Nov 19, 2025 Sjir Hoeijmakers, CEO of Giving What We Can and a veteran advocate for effective charity, dives into the transformative idea of multiplying your charitable impact. He contrasts typical donations with high-leverage interventions like malaria prevention, and introduces five key principles for effective giving. Sjir discusses balancing personal passions with evidence-based choices and highlights the importance of independent evaluations. With insights on the 10% Pledge, he encourages listeners to embrace accountability and explore new ways to maximize their donations.
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A Hidden High‑Impact Charity
- Bandhan looked unimpressive online but delivered a proven 'graduation' program in India.
- After deeper research, Founders Pledge directed over $1M there, revealing hidden high‑impact organizations.
Always Use Cost‑Effectiveness
- Evaluate charities by cost‑effectiveness, not just good stories or impact claims.
- Include program costs, marketing spend, and outcomes to compare dollars per unit of benefit.
Widening Your Moral Circle Multiplies Impact
- Expanding your moral circle (animals, future people) opens large, underfunded beneficiary pools.
- Considering these groups can radically change which causes are most cost‑effective.
