system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why does old software get buggy when it hasn't been updated for a while? Shouldn't have the same amount of bugs as it was when that version was released?
gpt
Software running on a a totally closed system will not generate new software bugs. Examples might include old-school arcade games, appliances like a microwave oven, and old digital watches. 

These systems might show new errors as the hardware gets old and fails in ways the software was never written to handle. 

But any software that has to talk to other software will show new bugs over time because the writers of the code could not predict every possible new change.