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Nope, it comes down to the generally agreed definition of the universe: the universe contains everything. If you want a border, there's the observable universe

by obtu 14y ago

Nope, it comes down to the generally agreed definition of the universe: the universe contains everything. If you want a border, there's the observable universe (everything in our past light cone).

hessenwolf 14y ago
Did you not follow the wikipedia link above?