Mark Zuckerberg at Startup School 2013

Zuckerberg says he first built games and a music player for himself, then began making tools to understand and connect with his college community. Course Match let Harvard students enter planned classes and see what others were taking; roughly 1,000 to 2,000 of the school’s 6,000 students used it. Running it from a laptop in his dorm taught him how to set up production servers, though steam from a nearby bathroom eventually fried the machine.

Zuckerberg saw people as missing from online services, which already offered ways to find music, news, and reference material. Facebook’s focus on real identity and connections helped it stand apart from competing college services. Profiles and friending let students explore who they knew and what classes they took, while Zuckerberg says identity and privacy controls made that sharing more comfortable.

Zuckerberg argues that startups can succeed even when better-resourced companies could build similar products, because a team’s commitment can keep it working through uncertainty. He says founders will make mistakes and should learn quickly instead of letting them stop progress. At 19, he knew little about business; he recalls not understanding vesting schedules and says early decisions may have cost him billions of dollars.

Zuckerberg says hiring needs change as a company grows, and suggests asking whether you would want to work for a candidate. He values teams that make better decisions together than members would alone, and says working with people he can learn from makes management rewarding. He also credits Peter Thiel with teaching him to focus on the one or two priorities that matter most, including connecting people quickly.

Facebook treated College Facebook’s expansion as a serious competitive threat, using an internal “lockdown” approach when it launched at schools where Facebook was absent. Zuckerberg says clones can gain lasting ground, citing VK in Russia, and advises founders to consider international competition early. He describes connecting people as a long-term mission, including efforts to bring internet access to people who cannot afford it.