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Thank you!
Yeah, it's always fascinating how a new hobby or passion makes you see the world through different eyes.
Had this with so many different activities now (e.g. photography, climbing, longboarding, hiking...)

I never got into longboarding but the others yes and they all do open our eyes to see new things for sure

Yeah, longboarding was acutally the funniest, because I suddenly started to look for steep streets with narrow corners and I find them really beautiful.
I mean something so simple as a piece of asphalt suddenly becomes attractive in a way :D

I can imagine I never got into it myself and I am not sure why but it does look like such fun
Not that I would try it now my knees aren’t what they used to be

Yeah, it's probably not a good idea, because especially slides can be rather hard on the knees.

The last time i tried skiing my knee popped out of joint and i understand long boarding is harder on the knees so for sure not for me

Uh, that sounds bad. I hope you recovered completely after that accident!
I think it depends on what your want to do with a longboard.
If you just use it for cruising around and you start to learn it step by step, it's rather soft on the knees.
But all further from that has a higher risk for injury.