ESMC
ESMC is the letter combination that possesses a high level of qualitative cryptographic strangeness . Apart from sharing a striking similarity to E=mc^2, when the combination is encrypted with a Caesar shift, the first line of letters one shift alphabetically forward is 'FTND', one shift backwards produces 'DRLB' (FTND BLRD). Although these are not words, with the right kind of perspective, FIND BIRD becomes visible. These types of characteristics are rare in a four letter combination giving ESMC a high level of qualitative strangeness.
ESMC? Qualitative strangeness? That is like saying that IHSO also possesses a similar level of qualitative strangeness? Good luck with that one mate!