They are terms relating to technical analysis, an attempt to determine future price action from past price action. Many traders look down on technicals as an at

They are terms relating to technical analysis, an attempt to determine future price action from past price action. Many traders look down on technicals as an attempt to read tea leaves while ignoring more important information. Myself included. Still, technical analysis can on occasion be a useful tool when making tactical decisions because people do watch certain levels, reversion and breakouts are real phenomena, and any widespread trading approach is at times a self-fulfilling prophecy.