Not sure what dates/time frames you're looking at on these...

Not sure what dates/time frames you're looking at on these historical charts Danube. In 1929 I see a rally about 50% over a period of weeks from an initial strong 2 day bounce. The duration is important - it means the market will rally more broadly as opposed to just the top stocks (or most oversold). It also means that there's a chance to break some vicious circles and hopefully put some virtuous circles in place. That didn't happen in 1929 but we have the benefit of learning from history and aren't condemned to repeat it.