Question

why did professor hawking not send any invitation until after the party?​

Answer 1

Answer:

Hawking didn't send out any of the invitations until after the reception had passed, which was a critical component of the experimental design: Only those who could travel back in time would thus be able to attend.

Answer 2

$\Large\mathtt\green{ ☘︎ \: }\huge\underline\mathtt\red{Answer : }$

Hawking didn't send out any of the invitations until after the reception had passed, which was a critical component of the experimental design: Only those who could travel back in time would thus be able to attend.

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