[xwolfi]

BS, nobody has to listen to your imaginative process. Imagine away, build something that conforms with the data, then show it !

For now, we dont know any other way to explain than to say it expands, except maybe imaginative fantasies from amateurs on Hackernews, but does it count ?

[koolala]

What if it expanded from anti-mass? Couldn't we form testable hypotheses from that?

I looked it up on the Wikipedia page for Exotic Matter and there isn't much exploration or tested theories on it.

[BlarfMcFlarf]

You certainly could try. But don’t expect experts in the field to bother to do any of the legwork for you, and that includes learning about all the evidence that your model has to account for to be remotely as good as our existing ones.

[koolala]

It's exciting to me just even being able to ask experts if anyone has tried before! progress = legwork + new direction!