Tomer D. Ullman.Niles Singer/Harvard Staff Photographer Science & Tech Researchers uncover surprising limit on human imagination Humans can track a handful of objects visually, but their imaginations can only handle one Christy DeSmith Harvard Staff Writer August 13, 2025 4 min read Human beings can juggle up to 10 balls at once. But how many can they move through the air with their imaginations? The answer, published last month in Nature Communications, astonished even the researchers pursui...
