Welcome to Wikipedia again!
"I always liked the impossible... I found quite often impossible problems could be solved with extremely simple methods..."
How wonderful that sounds, William! Wikipedia should be proud when such remarkable personalities as you want to participate in it!
A few years ago, I followed with interest your professional comments, especially on the talk pages dedicated to TTL and ECL logic gates (e.g., in Archive_1). Unfortunately, no one paid any serious attention and do not reflect them in the Wikipedia articles...
I (Circuit dreamer) contributed closely in Wikipedia during 2006-2010 and then I managed to make a lot in its circuit section; see for example my list of contributions... and especially the articles about digital circuits.
But my efforts to find clear, simple and powerful explanations of basic circuit solutions were perceived by Wikipedians as original research. As a result, I was banned from editing and actually I abandoned Wikipedia...
Then I (Circuit-fantasist) entirely moved to Wikibooks where I created Circuit Idea - a book about great circuit ideas; see for example the story about ECL.
Best regards, Cyril (Circuit dreamer).