system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How is light both a wave and a particle?
gpt
Describing light like as a wave and a particle is just an attempt to use familiar objects to help understand what light actually is.  In reality, it's neither wave, nor a particle, but it behaves similarly to both.

It's kind of like if you were to say "a llama is a horse and a camel".  Well, it's not a horse, and it's not a camel, it's a unique thing that happens to be similar in some ways to a horse, and some ways to a camel.  Make sense?

(EDIT: if you'd like more details on *how* light is similar to a particle and a wave, let me know)