Having participated to this thread, I want to greatly thanks Michaël, Thomas and Uwe for their posts with nuances and corrections. Please, don't stop precising things that you think they have to be precised. I'm agree with you, Uwe, with the fact that us, newbies, always need the counterpart to forge a opinion.
Paradox is that Jacques is frequently sustained by experimented folks here, saying he is frequently right... but being constantly countered... making the whole thing not always understandable for us, common people. Moreover his attitude don't simplify that.
Jacques, you are challenged with strong arguments, you have to answer more constructively.
As I said to you, I tried to past through your attitude to see what you really have to say, I played the game. Here I'm struck to see how your knowledge is constructed with strong bias. Isn't there a bit of cognitive dissonance you tend to resolve by misinterpreting reality rather than nuance or change your opinion? That's sad because you obviously have worked a lot. You would gain taking a step back and think about it.
Best regards to all