slippery perceptions

[From Rupert Young (980131.2115 UT)]

(Mary Powers (9801.30)

When I read Dick's number string, I converted it into the sequence
*1,31,41,51....

Here's another one. I read it as _overlapping_ blocks of three, 131, 141, 151
etc before I saw the 13, 14 etc

Regards,
Rupert