So......as I thought we need a neutron source to start LEN reactions? Exactly the same with fission chain reactions? So the fission-fusion reactor is the FUTURE.
This thought of yours is "Exactly the same with fission chain reactions?" - unfortunately, is erroneous. For more than 70 years, nuclear physicists have mistakenly considered neutrons to be the cause of the fission of uranium-235 ... This is their delusion! The fission of uranium-235 is initiated by gamma photons.