iH

"iH" is a meaningless word, but when iH is written reverse, it is "Hi", the most common ice-breaking greeting. Ice-breaking is the first touchpoint of a relationship.

Same magic works for "43770". If one presses "43770" in a calculator, and reads upside down, 43770 immediately turns into "Hello".

This kind of alphabetic coding is used when it is inconvenient to speak in public, or when a person wants to initiate a secret communication without the knowledge of others. Coding prohibits transparency, because codes are usually understood by a limited few. Those who do not understand the codes are simply left out. The minority simply prevail over the majority.

Touchpoint chain will never be formed when there is no commom language.