What is the threshold that directly links Alphabet's financial performance to the realization of a TikTok event?
Without an observable metric and a relevant sample, this statement is a speculation.
The realization of an event is an internal function, dependent on the investment and strategy of the organizer, not on an external unmeasured success.
For example, if TikTok fails to secure major broadcast partnerships for its event, Alphabet's success will have no impact on its realization.