I think it's safe to assume that ET has a much better detection capability
than we. Wouldn't it be more efficient to transmit a signal. Assuming we
will reach our peak detecting capability in 100 years, transmission would be
the most efficient method of establishing a communication if the star is
withing a range of 50 ly.

And I repeat my question: How can we expect to receive a signal if we are
not transmitting any?

Thats probably the most sensible statement ive heard. There are supposedly 14000 stars within 100 light years of earth. A 100
light year distance would be a round trip of 200 years.

Its like expecting people to send you letters when you dont
send any or tell anyone your address.