Explore a comprehensive lecture on bosons and multi-component fermions near unitarity, delivered by Ubirajara van Kolck from IPNOrsay & U Arizona. Delve into the intricacies of few-body physics, focusing on systems where the two-body scattering length dominates. Examine the connections between atomic and nuclear physics through phenomena like the three-body Efimov effect. Investigate topics such as unitarity, multi-component fermions, tower of states, and excited states. Gain insights into the current status of few-body physics near unitarity and its applications across various fields, including nuclear, atomic, molecular, condensed matter, high-energy, and mathematical physics. Discover the universal principles that link these diverse areas of study and their implications for understanding complex quantum systems.