Yes, abbreviations and acronyms are interesting.

They’re a common shorthand used to save time and space, and they've evolved over time to include various forms like acronyms and initialisms. Interestingly, some abbreviations, especially acronyms, can become so widely used that their origins are forgotten, like the word "laser" which stands for "Light Amplification by Stimulated Emission of Radiation," according to the BBC. Furthermore, abbreviations can be used for communication efficiency, as seen in texting and social media, where they're used to express full meanings with fewer characters.
Here's a more DL at some interesting aspects of abbreviations:
Evolution of Abbreviations:
Abbreviations have a long history, appearing in ancient Greek inscriptions, medieval manuscripts, and even the Qur'an. The development of acronyms is linked to wartime communication and the need for concise coding, as explained by the Association for Psychological Science.
Acronyms vs. Initialisms:
An acronym is a word formed from the initial letters of other words, and it's pronounced as a word (e.g., NASA, radar). An initialism is an abbreviation pronounced letter by letter (e.g., FBI, DIY). While the term "acronym" is sometimes used for both, a distinction is often made in formal writing, according to Merriam-Webster.
Backronyms and Other Forms:
Backronyms are acronyms where the expanded form is created after the abbreviation is already in use (e.g., SOS, originally used as a distress signal, later expanded to "Save Our Ship" or "Save Our Souls"). Other related terms include anacronyms (acronyms so common their origins are forgotten), recursive acronyms (where the abbreviation itself is part of the expansion), and apronym (where the acronym spells a related word).
Communication Efficiency:
Abbreviations and acronyms are used extensively in various forms of communication, from scientific writing to texting and social media, where they save time and space.
Potential for Confusion:
While efficient, excessive use of abbreviations and acronyms can also be confusing or even alienate an audience, especially in formal writing where the audience may not be familiar with the terms.
Cultural Impact:
Abbreviations and acronyms have become such an ingrained part of our language that many have entered the mainstream, often becoming so familiar that their origins are forgotten, like the words "smog," "motel," "laser," and "radar," according to pixartprinting.co.uk.
Types:
A contraction is an abbreviation formed by replacing letters with an apostrophe. Examples include I’m for I am and li'l for little.
An initialism or acronym is an abbreviation consisting of the initial letter of a sequence of words without other punctuation. For example, FBI (/ˌɛf.biːˈaɪ/), USA (/ˌjuː.ɛsˈeɪ/), IBM (/ˌaɪ.biːˈɛm/), BBC (/ˌbiː.biːˈsiː/). When initialism is used as the preferred term, acronym refers more specifically to when the abbreviation is pronounced as a word rather than as separate letters; examples include SWAT and NASA.
Initialisms, contractions and crasis (a contraction of two adjacent vowels into one long vowel or diphthong,) share some semantic and phonetic functions, and are connected by the term abbreviation in loose parlance.
Here's a more DL at some interesting aspects of abbreviations:
Evolution of Abbreviations:
Abbreviations have a long history, appearing in ancient Greek inscriptions, medieval manuscripts, and even the Qur'an. The development of acronyms is linked to wartime communication and the need for concise coding, as explained by the Association for Psychological Science.
Acronyms vs. Initialisms:
An acronym is a word formed from the initial letters of other words, and it's pronounced as a word (e.g., NASA, radar). An initialism is an abbreviation pronounced letter by letter (e.g., FBI, DIY). While the term "acronym" is sometimes used for both, a distinction is often made in formal writing, according to Merriam-Webster.
Backronyms and Other Forms:
Backronyms are acronyms where the expanded form is created after the abbreviation is already in use (e.g., SOS, originally used as a distress signal, later expanded to "Save Our Ship" or "Save Our Souls"). Other related terms include anacronyms (acronyms so common their origins are forgotten), recursive acronyms (where the abbreviation itself is part of the expansion), and apronym (where the acronym spells a related word).
Communication Efficiency:
Abbreviations and acronyms are used extensively in various forms of communication, from scientific writing to texting and social media, where they save time and space.
Potential for Confusion:
While efficient, excessive use of abbreviations and acronyms can also be confusing or even alienate an audience, especially in formal writing where the audience may not be familiar with the terms.
Cultural Impact:
Abbreviations and acronyms have become such an ingrained part of our language that many have entered the mainstream, often becoming so familiar that their origins are forgotten, like the words "smog," "motel," "laser," and "radar," according to pixartprinting.co.uk.
Types:
A contraction is an abbreviation formed by replacing letters with an apostrophe. Examples include I’m for I am and li'l for little.
An initialism or acronym is an abbreviation consisting of the initial letter of a sequence of words without other punctuation. For example, FBI (/ˌɛf.biːˈaɪ/), USA (/ˌjuː.ɛsˈeɪ/), IBM (/ˌaɪ.biːˈɛm/), BBC (/ˌbiː.biːˈsiː/). When initialism is used as the preferred term, acronym refers more specifically to when the abbreviation is pronounced as a word rather than as separate letters; examples include SWAT and NASA.
Initialisms, contractions and crasis (a contraction of two adjacent vowels into one long vowel or diphthong,) share some semantic and phonetic functions, and are connected by the term abbreviation in loose parlance.

A Brief History:
In early times, abbreviations may have been common due to the effort involved in writing (many inscriptions were carved in stone) or to provide secrecy via obfuscation.
Reduction of a word to a single letter was common in both Greek and Roman writing. In Roman inscriptions, "Words were commonly abbreviated by using the initial letter or letters of words, and most inscriptions have at least one abbreviation". However, "some could have more than one meaning, depending on their context. (For example, ⟨A⟩ can be an abbreviation for many words, such as ager, amicus, annus, as, Aulus, Aurelius, aurum, and avus.)" Many frequent abbreviations consisted of more than one letter: for example COS for consul and COSS for its nominative etc. plural consules.
Abbreviations were frequently used in early English. Manuscripts of copies of the Old English poem Beowulf used many abbreviations, for example the Tironian et (⁊) or & for and, and y for since, so that "not much space is wasted". The standardisation of English in the 15th through 17th centuries included a growth in the use of such abbreviations.
During the growth of philological linguistic theory in academic Britain, abbreviating became very fashionable. Likewise, a century earlier in Boston, a fad of abbreviation started that swept the United States, with the globally popular term OK generally credited as a remnant of its influence.
Over the years, however, the lack of convention in some style guides has made it difficult to determine which two-word abbreviations should be abbreviated with periods and which should not.
Widespread use of electronic communication through mobile phones and the Internet has led to a marked rise in colloquial abbreviation. This is due largely to increasing popularity of textual communication services such as instant and text messaging.
The original SMS supported message lengths of 160 characters at most (using the GSM 03.38 character set), for instance. This brevity gave rise to an informal abbreviation scheme sometimes called Textese, with which 10% or more of the words in a typical SMS message are abbreviated.
So, next time you are LYAO about WNTD in a texting message or preparing to bamboozle your counterparts at an EMBM – WIOY.
Just IMHO, of course!
In early times, abbreviations may have been common due to the effort involved in writing (many inscriptions were carved in stone) or to provide secrecy via obfuscation.
Reduction of a word to a single letter was common in both Greek and Roman writing. In Roman inscriptions, "Words were commonly abbreviated by using the initial letter or letters of words, and most inscriptions have at least one abbreviation". However, "some could have more than one meaning, depending on their context. (For example, ⟨A⟩ can be an abbreviation for many words, such as ager, amicus, annus, as, Aulus, Aurelius, aurum, and avus.)" Many frequent abbreviations consisted of more than one letter: for example COS for consul and COSS for its nominative etc. plural consules.
Abbreviations were frequently used in early English. Manuscripts of copies of the Old English poem Beowulf used many abbreviations, for example the Tironian et (⁊) or & for and, and y for since, so that "not much space is wasted". The standardisation of English in the 15th through 17th centuries included a growth in the use of such abbreviations.
During the growth of philological linguistic theory in academic Britain, abbreviating became very fashionable. Likewise, a century earlier in Boston, a fad of abbreviation started that swept the United States, with the globally popular term OK generally credited as a remnant of its influence.
Over the years, however, the lack of convention in some style guides has made it difficult to determine which two-word abbreviations should be abbreviated with periods and which should not.
Widespread use of electronic communication through mobile phones and the Internet has led to a marked rise in colloquial abbreviation. This is due largely to increasing popularity of textual communication services such as instant and text messaging.
The original SMS supported message lengths of 160 characters at most (using the GSM 03.38 character set), for instance. This brevity gave rise to an informal abbreviation scheme sometimes called Textese, with which 10% or more of the words in a typical SMS message are abbreviated.
So, next time you are LYAO about WNTD in a texting message or preparing to bamboozle your counterparts at an EMBM – WIOY.
Just IMHO, of course!