We see the function f(x) = x^{4}x^{2}c x, where c varies
between 1 and 1. The movie starts when c=0 then goes to 1, returns back to 0 goes to 1 and back to 0.
The system always choses the nearest local minimum as mandated by Delay assumption
of catastrophe theory. Parameters (=time values here), where a local minimum disappears,
is called a catastrophe. To the right we see the "bifurcation diagram" in real time
and where the parameter c is.
The background song is "Head over Heals" by Abba is chosen because of its meaning "upside down".
