All the points raised in the article were discussed in Robert L. Forward's Indistinguishable From Magic, which I read back in '95. And it's not like he came up with these ideas... his book is just a paperback.
One thing Dr. Forward talked about in his book was using micro-wormholes to send radio transmissions. Sure, it's not as cool as sending a ship through, and anyone who received the message couldn't send one back to us via the same wormhole, but maybe someone on the other end of the wormhole might have a few trick up their sleeves to let us know they received our transmission.
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All the points raised in the article were discussed in Robert L. Forward's Indistinguishable From Magic, which I read back in '95. And it's not like he came up with these ideas... his book is just a paperback.
One thing Dr. Forward talked about in his book was using micro-wormholes to send radio transmissions. Sure, it's not as cool as sending a ship through, and anyone who received the message couldn't send one back to us via the same wormhole, but maybe someone on the other end of the wormhole might have a few trick up their sleeves to let us know they received our transmission.
PS - this is my first post on Slashdot