Two posts in the Bill & Melinda Gates Foundation’s “Impatient Optimists” blog discuss Grand Challenges.

Impatient Optimists: How Do We Measure the Value of Grand Challenges?
Steven Buchsbaum, deputy director of discovery and translational sciences in the Global Health Program of the Gates Foundation, discusses how different Grand Challenges projects are evaluated, as well as how they contribute to global health knowledge and innovation (10/3).

Impatient Optimists: Grand Challenges: Success and Surprise
Peter Singer, CEO of Grand Challenges Canada, writes about the successes and lessons learned from Grand Challenges, which “has spread to become a global movement [that] continues to spread…” (10/4).