Julia aside, Keno, kudos for being an absolute class act and replying to everything so politely.<p>For what it&#x27;s worth, my impression of Julia has been overwhelmingly positive, and all the developers I&#x27;ve interacted with have been polite and friendly.  I haven&#x27;t made the switch from Python because:<p>- I prefer the Python syntax<p>- I like Python libraries (I know about PyCall, and it rocks)<p>- The increased speed of Julia doesn&#x27;t really add much given numba&#x2F;theano and so forth<p>However, I really like:<p>- Optional static typing for sanity checking<p>- Can write fast functions directly in julia - which is handy when passing callbacks or doing numerical routines like integration (although this requires timholy&#x27;s fast lambda package)