As much as I believe so many TECHNOLOGICAL advances are possible and exist at this very moment......
I stay up late at night sometimes, wondering how something that looks as small as a wrist-watch.....can shoot a STRING.....that is as strong as a steel cable....and end of the string is adhesive......and it bonds instantly upon impact.....but it won't bond to your hand if you grab the string to swing on it.
And the string that shoots out might be 20 feet long.
Thinking about HOW THIS MIGHT WORK enables me to fall asleep at night as I ponder any kind of hint or suggestion that maybe something like this would work.
I suppose there was no way around this topic in the movie. That is the original story so they can't really change it.
Although the new spider-man movie is not in theaters until July of 2012.....I can't wait to hear them EXPLAIN how this teenager built this little device.
(shouldn't the device have some kind of compressed-air or something to create a projectile of sticky substance). (Perhaps Nano-Technology?)
Perhaps the spider-bite venom unlocked something in his MIND and EXPLAINED to him something he didn't know before??
I shall suspend all dis-belief when i see the movie of course.