The main objective of this brief review was to discuss various challenges in theoretical nuclear structure, especially in the context of RNB physics. There are many unique features of exotic nuclei that give prospects for entirely new phenomena likely to be different from anything we have observed to date. New-generation data will be crucial in pinning down a number of long-standing questions related to the effective Hamiltonian, nuclear collectivity, and properties of nuclear excitations.
This conference is about new experimental tools for research in low-energy nuclear physics. But also in nuclear theory we are witnessing dramatic progress both in technology and in methods. Microscopic nuclear physics calculations can be quantitative! As one experienced physicist remarked some time ago, nuclear theorists prefer to solve approximate (i.e., simple) models exactly or to solve exact (i.e., microscopic) models approximately rather than to do the real job. The time has come to start solving exact models exactly...