Two-Sigma Tutoring Offers Guidance on Distinguishing Science Fiction from Science Fact

Benjamin Bloom’s essay “The 2 Sigma Problem,” known for its famous hand-drawn Figure 1 illustrating the potential benefits of one-to-one tutoring, has sparked both believers and skeptics for four decades. With the rise of generative artificial intelligence, education innovators like Sal Khan of Khan Academy are optimistic about the potential for AI tutors to fulfill Bloom’s vision.