Thanks, it was a very interesting video.
There is lot of new info that I didn't know into this presentation, it helped to clear some doubts I had, but it strengthened some other doubts.
The clarified points:
1) I am convinced that they are indeed measuring neutrons coming from fusion.
2) The "stabilization effect" seems to have been quite well investigated, and it seems to be induced by a "viscous effect" that slows down the faster external front of the plasma wave in a quicker way than the slower front at the core of the plasma wave. This (as they have shown in the slide at t=37.00 min) will tend to normalize the speed of the two front to a more uniform value during the "quiescent period".
The non clarified issues:
1) A low Q value seems still to be the biggest limit.
2) Sheared flow stabilization is not a primary stabilizing effect, but an emerging effect from the primary effect of reaching a period of a more uniform speed over all the plasma front (akin from when a fluid moves from a turbulent to a laminar flow state).
3) Being a viscous type of "speed leveling" effect it will have a limit to the input speed you can assign to the plasma front before the same effect will disrupt the front instead of slowing it down, which means there might be a shear velocity limit (Vz limit) to the plasma that might be the main cause of a low Q (this I believe is one of the issues they was referring to in their 2017 paper I mentioned a couple of posts ago).
4) The slide with the picture of the holographic interferometry measure (t=41.10 min) seems to clearly indicate that the plasma is still fluctuating in a M=1 "kink" mode, but the fluctuation are smaller because the difference in speed between the external front and the core front of the plasma are much smaller in respect to the compressed plasma radius.
So, attempting to reduce the plasma radius to lower values (to increase the Q), might amplify again the M=1 mode type of instabilities as well as bring back the emergence of non linear instabilities on the external surface of the pinched plasma.
Hopefully they will focus on these points in their next experimental run because if unsolved they are a show stopper for this tech, but if solved they might open the road to serious investment and research funds.
A society of dogmas is a dead society.