There is an interesting hint of the "past" by relating a relatively evocative "Y2K" scare in 1999: "He [Dominic Gray] made sure the 'Y2038 problem' didn't delete all of our bank accounts."
The Y2038 problem mentioned in this episode is a real problem for the future: The year 2038 problem is caused by 32-bit processors and the limitations of the 32-bit systems they power. Essentially, when the year 2038 strikes 03:14:07 UTC on 19 March, computers still using 32-bit systems to store and process the date and time won't be able to cope with the date and time change.
First time the white spacesuits with the spherical helmets are seen.