I'd like your opinion on the real world consequences that this technology would have in the near future (let's say year 2015). Time travel is possible, but you must set a starting point beacon and you'll then travel to it. Imagine the beacon as a car sized electronic device (it has a two meter spherical living space). The recaller is a watch sized device, that you must wear with you, and that will transport anything two meters around it, to the beacon. The process is: - Put recaller on arm. - Get inside the beacon. - Activate beacon at midnight 00:00. Set it at 4 hours. - Exit the the beacon. - Do whatever you want. - At 04:00, everything in a two meter radius sphere around the recaller appears inside the beacon at 00:00 How would that be used? What limits would you set up to be able to use this in a short story? [Edit: I'll add an example of two people using the machine.] Timeline Alpha (the normal one) 00:00 - Person A uses the beacon (4 hours trip). 00:05 - Person A exits beacon. 00:05 - Person B gets into beacon. (2 hours trip) 00:10 - Person B exits beacon. Timeline Beta (Diverges from Alpha at 00:05) 00:05 - Person B' comes back from his two hour trip. 00:10 - Person B' exits beacon. Timeline Gamma (Diverges from Alpha at 00:00 00:00 - Person A' comes back from his 4 hour trip. 00:05 - Person A' exits beacon. 00:05 - Person B gets into beacon. (2 hours trip) 00:10 - Person B exits beacon. Timeline Delta (Diverges from Gamma at 00:05) 00:05 - Person B' comes back from his 2 hour trip 00:10 - Person B' exits beacon.