I don't know kotlin, and I don't care to right now. However what you've done is the equivalent of barging into your neighbours house and complained about the wo

I don't know kotlin, and I don't care to right now. However what you've done is the equivalent of barging into your neighbours house and complained about the wood used in their decking. Look up 'netiquette' ... and read http://www.catb.org/esr/faqs/smart-questions.html http://www.catb.org/esr/faqs/smart-questions.html Then meditate on why your question was inappropriate for that forum.