@Alain BERTRAND thats going to be a beauty. @Djtommy this is exactly the type of stuff I find interesting thanks for posting the video. I need to try this too. I can't believe Bjorn in his low 30's was able to start this tree 20 years ago!
Bjorn's father had been doing bonsai since before Bjorn was born. Actually the senior Mr. Bjornholm is still doing bonsai. Bjorn himself started bonsai as a young kid, maybe teens. So it is possible that the timeline suggested by the video is accurate. It might have started as his Dad's tree or was a joint project between himself and his father, but the time line is possible.