<human>: Give me the gist of the text in a nutshell

How possible would it be to create a program that runs in the background of the computer that pops up and says Carpe Diem! if the computer has been used for a certain period of time (1 hour, 2 hours, etc.)? I figure if people have this installed on their computer and they see it flash on screen after some time just sitting at the computer people will be motivated to get up and do something for a bit. I don't know how realistic it would be or if anyone would be willing to try to make it?  Even if we don't get this program just remember to seize the day! (Some options could be things such as font, color, how much time to wait before it pops up)
<bot>: Make a program that's like the reverse of a screensaver.  Text appears if the computer has been used for a certain period of time.