You can't check the distance between a tame and wild because that would mean you already know the answer to the problem. The wild distance is relative to the unknown position of the public key.
You can easily calculate the distance between kangoroos. Distance is not a number, but a public key, or more precisely a point on a curve, or rather, x coordinate of point and the table for comparing the results is a table of x coordinates. The only problem is that the table size is limited by the memory size, and it is unlikely that you can achieve a size larger than 2^40 x coordinates in table.