Two thoughts on making a breeder:
1) If the front of the breeder moves at c/2 we don't have to worry about forward moons interfering with the engines. Here's a proof of concept of period-doubling tech at that speed:
Code: Select all
x = 711, y = 1021, rule = B2ek3i4c/S12cek
140$307bo7bo$296b3o7bobob3obobo7b3o181bo7bo$296bobo11bobo11bobo170b3o
7bobob3obobo7b3o$300b4o4bo2bo2bo4b4o174bobo11bobo11bobo$298bo4bo5bo3bo
5bo4bo176b4o4bo2bo2bo4b4o$301b2o4bo7bo4b2o177bo4bo5bo3bo5bo4bo$298bobo
6bo7bo6bobo177b2o4bo7bo4b2o$298b2o7b3o3b3o7b2o174bobo6bo7bo6bobo$499b
2o7b3o3b3o7b2o$302bo17bo$503bo17bo7$309b2ob2o$309b2ob2o196b2ob2o$510b
2ob2o$300b2o3b2o9b2o3b2o$300bo5bo9bo5bo178b2o3b2o9b2o3b2o$296b3ob3ob3o
9b3ob3o178bo5bo9bo5bo$296bobo3bobo13bobo180b3ob3o9b3ob3ob3o$503bobo13b
obo3bobo8$333b2o$334bo154b2o$333b2o154bo$489b2o9$345b2o$346bo130b2o$
345b2o130bo$477b2o9$357b2o$358bo106b2o$357b2o106bo$465b2o9$369b2o$370b
o82b2o$369b2o82bo$453b2o9$381b2o$382bo58b2o$381b2o58bo$441b2o9$393b2o$
394bo34b2o$393b2o34bo$429b2o9$405b2o$406bo10b2o$405b2o10bo$417b2o2$
411bo$410bobo15$411bobo$412bo4$390b2o32b2o$390bo34bo$390b2o32b2o$428b
3o$428bobo13$409bobo$409b3o6$366b2o$366bo$366b2o17$411bobo$412bo4$342b
2o$342bo$342b2o12$445bo7bo$434b3o7bobob3obobo7b3o$434bobo11bobo11bobo$
409bobo26b4o15b4o$409b3o25bo3bo6bobo6bo3bo$437bo6b3o5b3o6bo$437b2o2bo
2bob7obo2bo2b2o$440bo7bobo7bo$447bo3bo$443bo11bo$318b2o122bo13bo$318bo
124bobo7bobo$318b2o9$16bo7bo$5b3o7bobob3obobo7b3o426b3o$5bobo11bobo11b
obo399b2o9b2o3b2o9bobo$9b4o15b4o403bo11bo3bo$8bo3bo6bobo6bo3bo402b2o9b
2o3b2o$8bo6b3o5b3o6bo$8b2o2bo2bob7obo2bo2b2o326bo8b3o2bo2b3o8bo$11bo7b
obo7bo328bobo7bobobobobobo7bobo$18bo3bo340b2o17b2o27bobo$14bo11bo335bo
2bo6b3o6bo2bo27bo$13bo13bo333bo7bo7bo7bo$14bobo7bobo335b4o2bobo2bo2bob
o2b4o$372bobo$294b2o64bobo7bo5bo7bobo$294bo72bo11bo43b2o$294b2o71bo11b
o43bo$367b3o7b3o43b2o$369bobo3bobo5$5b3o$5bobo9b2o3b2o9b2o$18bo3bo11bo
$17b2o3b2o9b2o2$359bo$358bobo9bo5bo9bo$371bo3bo11bo$370bo5bo9bo5$45b2o
$46bo$45b2o223b2o$270bo$270b2o$398bo$399bo$398bo5$57b2o$58bo$57b2o10$
69b2o86bo7bo$70bo75b3o7bobob3obobo7b3o$69b2o75bobo11bobo11bobo69b2o$
150b4o15b4o73bo$149bo3bo6bobo6bo3bo72b2o$149bo6b3o5b3o6bo248bo$149b2o
2bo2bob7obo2bo2b2o249bo$152bo7bobo7bo251bo$159bo3bo$155bo11bo$154bo13b
o$155bobo7bobo$81b2o$82bo$81b2o3$436bo$435bobo4$174b3o$147b2o9b2o3b2o
9bobo$93b2o52bo11bo3bo$94bo52b2o9b2o3b2o$93b2o127b2o$222bo$222b2o7$
135b2o$105b2o28bo$106bo28b2o$105b2o9$123b2o$117b2o4bo$118b2obo2bo$117b
2obobo75b2o$198bo$198b2o19$119bobo$120bo$102b3o39b2o$102bobo40bo28b2o$
144b2o28bo$174b2o17$121bobo$121b3o5$147b2o14b2o$147bo16bo$147b2o14b2o
6$157bobo$157b3o3$176b3o$176bobo7$119bobo$67bo7bo44bo$56b3o7bobob3obob
o7b3o$56bobo11bobo11bobo$60b4o5bobobo5b4o$58bo4bo15bo4bo$61b2o17b2o$
58bobo7b2o3b2o7bobo$58b2o8b2o3b2o8b2o3$62b3o13b3o$62bobo4b2ob2o4bobo$
63bo15bo9$121bobo$56b3o62b3o$56bobo2$121b2o$87b2o$88bo$87b2o9$159bobo$
99b2o59bo$100bo$99b2o10$111b2o$112bo$111b2o31$157bobo$157b3o11$119bobo
$120bo2$159b2o$160bo$159b2o23$55bo8b3o2bo2b3o8bo$54bobo7bobobobobobo7b
obo$59b2o17b2o$56bobo2bo4bobobobo4bo2bobo$57bobo19bobo$56bo9bo5bo9bo$
57bob3o5bo3bo5b3obo$59b3o15b3o2$61bo15bo$60bobo4b2ob2o4bobo80bobo$160b
o$60bobo13bobo9$55bo$54bobo$207b2o$208bo$85bo121b2o$86bo$85bo10$97bo$
98bo$97bo10$109bo$110bo$109bo5$157bobo$157b3o14$255b2o$256bo$133bo121b
2o$134bo$103bo7bo21bo$92b3o7bobob3obobo7b3o$92bobo11bobo11bobo$96b4o5b
obobo5b4o25bo$94bo4bo4bobobobo4bo4bo22bobo$97b2o7bobo7b2o$94bobo21bobo
$94b2o8bo5bo8b2o3$99bo15bo$97bo3bo11bo3bo2$96bobobobo9bobobobo$96bobob
obo9bobobobo$96b3ob3o2b2ob2o2b3ob3o$97bobobo11bobobo$98bobo13bobo$97bo
3bo11bo3bo$98bobo13bobo$99bo15bo2$92b3o$92bobo7$127b2o$128bo30bobo$
127b2o31bo10$139b2o$140bo$139b2o162b2o$304bo$303b2o3$197bo8b3o2bo2b3o
8bo$196bobo7bobobobobobo7bobo$201b2o5bo5bo5b2o$200bo2bo4bo5bo4bo2bo$
199bo8bo5bo8bo$151b2o47b4o6bobo6b4o$152bo$151b2o45bobo21bobo3$202bobo
13bobo$202bobo13bobo$200bobobobo9bobobobo$200bobobobo9bobobobo$199bo7b
o7bo7bo$209b2ob2o3$201bobobo11bobobo$201bo3bo11bo3bo$202b3o13b3o$225bo
$224bobo7$175b2o$176bo4b3o6bo$175b2o4bobo5bo$190bo10$178bo$177bo173b2o
$178bo173bo$351b2o9$166bo$165bo$166bo22$136bo5bo$135bobo3bo$142bo11$
399b2o$400bo$399b2o46$447b2o$448bo$447b2o46$495b2o$496bo$495b2o46$543b
2o$544bo$543b2o!
This needs more streams and more cleanup for each layer so I think it would get exponentially large if you kept going, but I do think it is possible.
2) It might also be more practical to make a one-sided rake, suppressing half of the ships and all of the still lives, to protect the engines (pointing the exhaust moons backwards). The reflector bird can be made ahead of time:
Code: Select all
x = 257, y = 129, rule = B2ek3i4c/S12cek
26$59b3o$59bo$61b4o106bo$58b2o4bo102b2obobo$166bo2bobo$166b2o$168b2obo
$169b3o4$50bobo120b2o$50b3o121bo$174bo3b2o$173b2o3bo$178bo$178b2o$53b
2o$49b3o122b2o$49bobo121bo2bo4$56bo$55bobo!
Without the exhaust dominoes that would destroy following rakes, we
could make a rake gun instead of a rake rake. The domino+3V synth doesn't even need ships going right down the barrel - but I don't know about protecting the gun from the first moons to leave the rake. Then again, if you can synthesize with forward moons from a rake, the two-bird puffer above might be simpler...
