For nonexperimental data, causal direction can often be inferred if information about time is available. This is because (according to many, though not all, theories) causes must precede their effects temporally. This can be determined by statistical time series models, for instance, or with a statistical test based on the idea of Granger causality , or by direct experimental manipulation. The use of temporal data can permit statistical tests of a pre-existing theory of causal direction. For instance, our degree of confidence in the direction and nature of causality is much greater when supported by cross-correlations , ARIMA models, or cross-spectral analysis using vector time series data than by cross-sectional data .
Your analysis for Abhi is spot on. I am about to write the same for him. Any one going through Venus/Sat or Sat/Venus undergo the similar problems like Abhi is going through. I get the sub-period finishes by 21-02-2015. Certainly from Jun 2014, it looks more optimistic for the native. However, the birth star being Jyesta (Jupiter related) will have more impact of SadeSatti. For Venus (fasting on Friday, praying Mahalakshmi), Saturn (fasting on Saturday, Praying Lord Shiva, Hanuman) will help. Saturn will make the subject to pay back for the mistakes made in the past and gets the real character out which is like melting gold to take out impurities. The melting process is the one makes the subject unbearable and need to follow strict moral character. I may suggest feed roti or rice to crows on Saturday morning if possible. Go and clean the temple on Saturdays or even clean& mop your own house which will please Saturn greatly.
The journalist Peter Dizikes, writing in The Boston Globe in 2008, notes that popular culture likes the idea of the butterfly effect, but gets it wrong. Whereas Lorenz suggested correctly with his butterfly metaphor that predictability "is inherently limited", popular culture supposes that each event can be explained by finding the small reasons that caused it. Dizikes explains: "It speaks to our larger expectation that the world should be comprehensible – that everything happens for a reason, and that we can pinpoint all those reasons, however small they may be. But nature itself defies this expectation."