system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How are aliens expected to decode the golden record on Voyager 1 and 2?

I understand that an advanced civilization would have to use science to decode them, but how would they be expected to decode something that is based on human-constructed measurements, such as the use of cm, AU, time in seconds, etc.
gpt
The golden record tries to take that into account.  It has a number of aspects of math that are assumed to be universal along side how we notate that in our language.  It then tries to define our units of measure using things we assume to be constant across the universe - eg. the gram is defined based on the atomic weight of hydrogen.

The hope is that an intelligent species would realize the record is from another intelligent species and would be able to decode it; it is accepted that this process will take some effort, but assuming that their laws of physics and chemistry are the same as ours, it would be possible.