The first video of the martial ,I'm going to try it ,I had some setsback when I asked someone to do that against me.It could be fun and a benificial exercise.The Bruce Lee video reminded me of this:

speaking of dapps
I know couple of them like steemhunt ,dlike and partiko
I like partiko for the fact that it has such a nice design. I gave the others ones a look
they turned out to be games.For a while I was perplexed why blockhain and gaming could be a thing what kind of problem is it solving? steemmonsters home page gave some neat applications for it.I also have checked steam engine ,I'm quite intrigued of the uses of it.