The problem with the butterfly effect (the movies, parts 1&2)

I watched the second in the series (bet you didn't even know a sequel existed) last night, a few days after viewing the first, and find myself asking the following three questions:

1) Why does replaying one's past and then unwinding it into a different future have to be accompanied by scary music, all manner of disturbing on-screen visual distortions, apparent excruciating head pain on the part of the individual undergoing the time shift and — most inexplicable of all to this observer — a nosebleed?

Why not blood from the mouth or the ear?

Why a nosebleed?

Hmmm?

2) Why should movies with such a fascinating premise be so bad?

3) For that matter, why didn't the filmmakers call on Edward N. Lorenz, the father of chaos theory, for guidance? I'll bet he'd have been delighted to help out.

Lorenz died on April 16 of this year at the age of 90 and according to Kenneth Chang's New York Times obituary, "Dr. Lorenz remained active almost to the end of his life, in both research and outdoor activities. 'He was out hiking two and one-half weeks ago,' Cheryl Lorenz [his daughter] said, 'and he finished a paper a week ago with a colleague.'"

Here's an idea: Get a copy of Ken Grimwood's great 1987 novel, "Replay".

Only $8.37 vs. $12.99 for the two movies and a much, much better time to be had.