Butterfly effect: Difference between revisions

The '''Butterfly Effect''' was a theory that a [[butterfly]] could flap its wings in one place and greatly affect events in another place. This was a concern, in relation to [[time travel]], that travelling to the past and crushing a butterfly could drastically change the future.

The [[Seventh Doctor]] contemplated a butterfly flapping its wings in [[Mettula Orionis]] as having great consequences elsewhere in the universe ([[NA]]: ''[[Transit]]''), and the [[Eighth Doctor]] confused the theory, mentioning how a [[bat]] flaps its wing and causes a tropical storm. ([[BFA]]: ''[[Invaders from Mars]]'')