ConwayLife.com

Well, the title sort of says it all. What is the state of the art in communications at lightspeed? The most recent resource I can find is from 2008.

The most recent development in lightspeed communications is the completed version of my stable telegraph:

http://calcyman.awardspace.co.uk/life-m ... legraph.mc

Gabriel Nivasch's website features (a slightly incomplete version of) my telegraph, where five inputs must be synchronised. The aforementioned pattern has an arrangement of reflectors to perform this task, thus completing the telegraph.



As for diagonal lightspeed communications, there is no pattern that repeatedly sends information down a diagonal wire at (1,1)c. However, I have a constructive proof that such patterns do exist.



There is no known interface between an orthogonal lightspeed 'stripes' signal and the outside world. Dave Greene and Noam Elkies collaborated to realise the first 2c/3 diagonal transceiver, so an interface between 2c/3 and lightspeed (and vice-versa) would facilitate a lightspeed transceiver of this variety.

I noticed that the 2c/3 transceiver can be bent around a corner, using one of Dean Hickerson's old corners.

I'm very much interested in lightspeed communication, agars, wires and so on. It seems to me that the biggest problem is with the receivers; it's simply too hard to look at what comes out of the communicators. Is there any way to fix this apart from changing the transmissions, which seems difficult?

calcyman wrote: May 16th, 2010, 4:27 pm There is no known interface between an orthogonal lightspeed 'stripes' signal and the outside world. Dave Greene and Noam Elkies collaborated to realise the first 2c/3 diagonal transceiver, so an interface between 2c/3 and lightspeed (and vice-versa) would facilitate a lightspeed transceiver of this variety.

And in 10 years nothing changed?...

Shaos wrote: April 15th, 2020, 2:10 am

calcyman wrote: May 16th, 2010, 4:27 pm There is no known interface between an orthogonal lightspeed 'stripes' signal and the outside world. Dave Greene and Noam Elkies collaborated to realise the first 2c/3 diagonal transceiver, so an interface between 2c/3 and lightspeed (and vice-versa) would facilitate a lightspeed transceiver of this variety.

And in 10 years nothing changed?...

That post was made in 2010. Plus, please don't necropost like this, or you'll break Naszvadi's record.

I'm pretty sure nothing changed, though.

We know that it is possible to build a diagonal lightspeed wire. One simply uses a one-time diagonal light speed signal, such as the fuse built from a single diagonal line of cells, and then places next to it a series of universal constructors that detect when the fuse has been burnt up and reconstruct it. But no one has actually built the pattern yet!

Macbi wrote: April 15th, 2020, 11:14 am We know that it is possible to build a diagonal lightspeed wire. One simply uses a one-time diagonal light speed signal, such as the fuse built from a single diagonal line of cells, and then places next to it a series of universal constructors that detect when the fuse has been burnt up and reconstruct it. But no one has actually built the pattern yet!

This reaction might be easier than the diagonal line fuse: