Daily TA question for S/A Can you explain what the RSI is all about? I see some use a 10 Day 15 day etc indicators, which would be better for short term buying/selling (1 to 3 days) and which would be better for holding long term (more then 5 days) Also RSI is measured from 1 to 100 and I hear comments like oversold power zone etc, could you elaborate on that.