Dialogue on analytical and ab initio methods in attoscience Gregory S. J. Armstrong, Margarita A. Khokhlova, Marie Labeye, Andrew S. Maxwell, Emilio Pisanty and Marco Ruberti Eur. Phys. J. D, 75 7 (2021) 209 Published online: 20 July 2021 DOI: 10.1140/epjd/s10053-021-00207-3