Victorian magicians and The Prestige

I finally got around to watching the 2006 Christopher Nolan movie The Prestige on the weekend - about warring stage magicians of Victorian England.

I found it quite entertaining, and would recommend it, but after reading a bit more about it, it's one of those movies where the plot definitely does not bear thinking about.   

SPOILER ALERTS:

The main issue is the involvement of Tesla - as the initial reaction (certainly my son thought so) was that the Christian Bale character had taken advantage of Tesla's clone machine first.   But no, apparently if you pay closer attention, he always had a twin brother, and the Tesla thing was just to send his rival off on a wild goose chase.  Seems a little crazy, then, doesn't it, that Tesla should be able to whip up a clone machine in short order?  

Wouldn't it have made more sense the Bale really had been cloned?

Secondly:  there has been a fair bit written on the net about the vanishing bird cage trick.   It would seem it was never done as portrayed in the movie, and although the trick was hazardous to the bird, it was not necessarily fatal.   I guess I would count this as fictionalisation that is (more or less) justified.  

In any event, here's a lengthy article that appeared in The Conversation last year about the history of magician-ship in Victorian England.