Anyone still grinding away at extracting data from the symbols displayed on the obelisks at the ruins site?
Had a play with the
Obelisk Playground yesterday. Two groups of 18 lights = 36 bits per state, maybe two 18 bit words, maybe a single 36 bit word. I didn't really want to point the finger at humans again, since I'm not convinced this time, but a couple of interesting coincidences / possibilities:
- Base36 is a binary-to-text encoding scheme that represents binary data in an ASCII string format by translating it into a radix-36 representation. The choice of 36 is convenient in that the digits can be represented using the Arabic numerals 0–9 and the Latin letters A–Z.
- There have been some 36-bit computers: Smaller machines like the PDP-1/PDP-9/PDP-15 used 18-bit words, so a double word was 36 bits.
If either of these possibilities was correct, there is still the issue of how you would read a state out into binary format. Where do you start? Presumably the lower bits would be the most frequently used, and this might explain why some (highest?) bits are not used at all.