✹ i7=1008', o | 2013-02-09 260dim-demo || contains in dim 2,3,4... pseudo randoms for tests; manhattan metric le..

✹ i4=      0, o 2017-06-20 sr0 | 0, 0, 4.095958, 1.238953, 1.465113, 2.390423, 9.62727, 4.375234, 5.603754, 3.7688..

✹ i2=      1', | 2013-02-09 Manhattan