Conspiracies are a function of information, or more precisely, a lack of information.  Let's define a quantitative test for a conspiracy.  

two or more conspirators who share some information
at least one victim who is excluding from that information
conspirators profit in some way from the victim's ignorance

Now we'll test our theory out.  A man is cheating on his wife.  Is this a conspiracy?

  • Two or more  conspirators?  Yup, the man and the mistress.
  • A unknowing victim?  Yup, the hapless wife.
  • A profit motive?  Yup, the man and the mistress are getting something.

Bing!  We have a conspiracy.  Now you go try it on something suspicious like a presidential news conference  or public statements about COVID!