  F\"oldes and Pokol in their letter "Inertial fusion without compression does
not work either with or without nanoplasmonics" criticized our works
\cite{CS2015,CKP2018}. Here we refute their argumentation. Our proposed
improvement is the combination of two basic research discoveries: (i) The
possibility of detonations on space-time hyper-surfaces with time-like normal
(i.e. simultaneous detonation in a whole volume) and (ii) to increase the
ignition volume to the whole target, by regulating the laser light absorption
using nanoantennas. These principles can be realized in an in-line, one
dimensional configuration, in the simplest way with two opposing laser beams as
in particle colliders \cite{CsEA2020,Bonasera2019}.
