Ynow zwishenzug.... I've wondered that too.. what if there is only now? What are our memories then?
I remember my dreams, events occuring over long periods of time yet they obviously did not occur in this time and place as I was only asleep for a few hours.. . so what if our memories here are the same... Dreams..

All of us are sleeping Gods

As for that time travel guy, There was a newspaper article in the times I read a few months ago about some guy that got sent to jail for insider trading, he took a measly 800 or so dollars and turned it into a multi million dollar fortune in a matter of a couple months. He said that he was a time travler and couldent resist taking advantage of the market of the early 2000's its very unstable but if you invested in the right places you could (and did) make a fortune... but the bredth of the comapniies he invsted into would mean he would have to have his fingers in everything and ears everywhere to be inside trading... He kept pleading to be set free so he could get back to his time craft, he would not disclose its location though, i dont know whats going on with him now though... I just found it interesting as it was in the times.

As for that computer... dude you can use a vacuume to clean stuff...
and there are people out there that collect some weird stuff.. most of em old people, lots of em live in florida... old people that is.. why not a collector of old PC's?