Sawmill

Sawmill is an infinite family of patterns with growth rates log(t), tlog(t), log*(t), tlog*(t), log**(t), tlog**(t), log***(t), tlog***(t), etc., based on three sub-patterns that can be combined in different ways to create different growth rates.

Part 1 (input)

Part 1 is generation 426 of caber tosser 1. It cannot be replaced with a gun, sqrtgun or other super-logarithmic source, because a high population would occur at the start of each cycle, changing the upper asymptotic growth rate.

Part 2 (filter)

The stackable filter was constructed by Alexey Nigin no later than July 2, 2015.[1] A glider on an input lane causes pairs of LWSSs to be shot toward the back of a 117P9H3V0 in the same direction. LWSSs are turned into a loaf, which is then incrementally pulled back to the stationary components. Upon arrival the loaf is destroyed, a glider is released on the output lane and the cycle begins again.

Part 3 (optional)

An oscillator which can convert gliders into rakes is used to construct super-linear growth rates.

gollark: I had a Wileyfox Swift before, which was very niche but had a removable battery and ran LineageOS and whatnot.
gollark: It's very annoying that I have to put in so much effort with custom ROMs and whatnot to make Android non-spying and actually usable. I suppose I would *mostly* be okay with just root access if I could still have microG work somehow.
gollark: There are something like 60 listed with all that except good custom ROM support, which is annoying.
gollark: I can't really find any new enough to buy phones with removable batteries, >=2GB of RAM and good custom ROM support.
gollark: I don't have soldering equipment. Or know how to solder.

See also

References
  1. Alexey Nigin (July 2, 2015). Re: Log log log log? (Complete!) (discussion thread) at the ConwayLife.com forums
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