system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why is it that we're able to connect to the Voyager in interstellar space using 20th century technology, and yet it can be rather difficult getting a WiFi signal to my room?
gpt
Your WiFi signal is coming from a very low power signal (a few milliwatts) through a very small (a few inches) antenna.

Voyager is using a nuclear-powered transmitter through an antenna several feed in diameter to talk to an absolute huge (many tens of meters) antenna here on Earth. 

If you had the power and antenna from Voyager on your WiFi, you'd have no issues getting WiFi in your room.