The "acronyms have to be pronounceable" tribelet is in a tiny misinformed minority, since the following 1,216 TLAs are in use, some since before any of us were born, and many are completely unpronounceable. How do _you_ pronounce "RPMs"?, BTW, or, for that matter, "BTW"? It may predate you, but, before WWW (gee, how does that one sound?) forums, us geezers and codgers communicated vis BBSes. I"ve been to the DMZ between north and South Korea (they never capitalize "north" in the South as it"s considered a temporarily renegade province of Korea). I don"t know how it sounds in 7.1, but, DVD is an unpronounceable TLA in any number of channels. An accepted mathematical principle is that only one counterexample needs to be found in order to disprove a theorem, and there are hundreds of counterexamples below.
AAC, AAL, AAP, ABC, ABI, ABM, ABP, ABR, ACA, ACE, ACF, ACK, ACL, ACM, ACP, ACT, ADC, ADL, ADM, ADO, ADR, ADS, ADT, AED, AEP, AES, AFJ, AFK, AFP, AFS, AGL, AGP, AIA, AID, AIR, AIT, AIX, AKC, AKL, ALC, ALF, ALM, ALP, ALU, AMD, AMI, AML, AMO, AMP, AMS, AND, ANI, ANL, ANR, ANS, ANU, AOL, AOP, AOS, APA, APC, APE, API, APL, APM, APT, AQL, ARC, ARL, ARM, ARP, ARQ, ART, ASA, ASE, ASF, ASK, ASL, ASM, ASN, ASP, ASR, AST, ATA, ATK, ATM, ATS, ATX, AUI, AUP, AVI, AVS, AWE, AWG, AWT, AYT, BAD, BAL, BAP, BBC, BBL, BBS, BCC, BCD, BCL, BCS, BDC, BDL, BEA, BEG, BEL, BER, BFI, BGA, BGP, BIP, BLT, BMF, BMP, BNC, BNF, BOF, BOS, BPI, BPR, BPS, BQS, BRB, BRH, BRI, BRS, BSA, BSD, BSI, BSL, BSS, BST, BTB, BTS, BTW, BWQ, CAD, CAE, CAF, CAI, CAL, CAM, CAN, CAP, CAS, CAT, CAV, CBD, CBN, CBR, CBT, CBV, CCD, CCL, CCP, CCR, CCS, CDA, CDC, CDE, CDF, CDL, CDM, CDS, CEN, CER, CFD, CFP, CGA, CGI, CGM, CHI, CID, CIF, CIL, CIM, CIR, CIS, CIX, CJK, CLI, CLM, CLP, CLR, CLU, CLV, CLX, CMA, CMC, CML, CMM, CMP, CMS, CMU, CMZ, CNC, CNI, CNN, COM, COS, CPE, CPI, CPL, CPM, CPS, CPU, CRC, CRL, CRM, CRT, CSG, CSL, CSM, CSO, CSP, CSR, CSS, CSU, CSV, CTC, CTI, CTL, CTS, CTY, CUA, CUL, CUT, CVS, CWI, DAA, DAC, DAG, DAS, DAT, DAU, DBA, DBC, DBH, DCA, DCC, DCE, DCG, DCI, DCL, DCP, DCS, DCT, DDB, DDE, DDL, DDM, DDN, DDO, DDP, DDS, DDT, DEA, DEC, DED, DEK, DER, DES, DEX, DFA, DFC, DFD, DFS, DFT, DGL, DIB, DID, DIL, DIM, DIN, DIP, DLC, DLE, DLG, DLL, DLM, DLP, DLT, DMA, DME, DMI, DML, DMM, DMZ, DNF, DNS, DOA, DOE, DOF, DOL, DOM, DOS, DPB, DPL, DPN, DPP, DPS, DRM, DSA, DSE, DSI, DSL, DSM, DSN, DSP, DSR, DSS, DST, DSU, DSW, DTD, DTE, DTP, DTR, DTS, DUA, DVD, DVI, DXF, EAF, EAG, EAI, ECC, ECL, ECM, ECP, EDA, EDF, EDI, EDL, EDM, EDP, EDS, EER, EFF, EFL, EFT, EGA, EGP, EIA, EJB, ELF, ELI, ELP, EMA, EMC, EML, EMM, EMS, EMX, ENQ, ENS, EOF, EOL, EOT, EOU, EPL, EPP, EPS, ERA, ERC, ERD, ERP, ESA, ESC, ESD, ESF, ESI, ESL, ESP, ESR, ETB, ETC, ETM, ETX, EVE, EXE, FAC, FAD, FAP, FAQ, FAT, FCB, FCP, FCS, FDC, FDT, FEA, FEC, FEL, FFP, FFT, FGL, FHS, FIR, FIX, FMQ, FMS, FMV, FNC, FOD, FPA, FPM, FPU, FQL, FRL, FSB, FSF, FSK, FSL, FSM, FSP, FTP, FTX, FUD, FYA, FYI, GAL, GAN, GAP, GAT, GCC, GCL, GCR, GCT, GDB, GDI, GEA, GEI, GEM, GFR, GHC, GIF, GIN, GIP, GIS, GKS, GLB, GLS, GLU, GMD, GMT, GNN, GNU, GOL, GOM, GPF, GPL, GPM, GPS, GPV, GPX, GRE, GRG, GSI, GSL, GSM, GSS, GTL, GUI, GVL, GWM, HAL, HCF, HCI, HCS, HDA, HDC, HDD, HDF, HDL, HDM, HEP, HFC, HID, HLL, HMA, HMP, HOL, HPF, HPL, HPR, HSB, HSC, HSM, HSV, HTH, HVD, IAB, IAD, IAL, IAM, IAP, IAR, IAS, IAW, IBM, ICE, ICI, ICL, ICQ, ICT, ICW, IDD, IDE, IDF, IDL, IEC, IEF, IEN, IFC, IFF, IFP, IFS, IFX, IGC, IGL, IGP, IGS, IGU, IHS, IHV, IIL, IIR, IIS, IIT, ILF, IMD, IML, IMO, IMP, IMR, IMS, IOI, IOS, IOW, IPA, IPC, IPE, IPL, IPS, IPT, IPX, IQL, IRC, IRL, IRM, IRQ, ISA, ISE, ISF, ISL, ISO, ISP, IST, ISV, ITP, ITS, ITU, IVR, IVY, IXC, IXO, JAD, JAZ, JCL, JDK, JES, JIT, JMS, JNI, JPL, JRE, JRL, JRN, JSA, JSP, JTB, JTC, JTS, JVM, KAP, KBS, KCL, KEE, KFX, KIS, KLB, KMS, KNI, KRC, KRL, KRS, KSL, KSR, KTH, LAN, LAP, LAT, LAU, LAX, LBA, LBE, LBL, LBX, LCC, LCD, LCF, LCL, LCP, LCS, LDB, LDL, LDP, LDT, LEC, LED, LEO, LER, LGN, LIF, LIS, LLC, LLP, LML, LNF, LOC, LOL, LOM, LOP, LPC, LPF, LPG, LPI, LPL, LPS, LPT, LRC, LRU, LSA, LSB, LSE, LSL, LSP, LSR, LTL, LTR, LUG, LUN, LVD, LWP, MAC, MAD, MAL, MAN, MAO, MAP, MAS, MAU, MBS, MCA, MCC, MCI, MCL, MCP, MCS, MDF, MDI, MDL, MFC, MFE, MFM, MHS, MIB, MIF, MIG, MII, MIS, MIT, MIX, MJS, MLL, MMI, MML, MMU, MMX, MNP, MOO, MOS, MPC, MPG, MPI, MPL, MPP, MPV, MPX, MQG, MRI, MRP, MRS, MSB, MSM, MSN, MSS, MSX, MTA, MTS, MTU, MUA, MUD, MUP, MVC, MVS, MXI, NAG, NAK, NAS, NAT, NAU, NBS, NBT, NCD, NCP, NCS, NDL, NDS, NEC, NFA, NFS, NFT, NGL, NIC, NIH, NII, NIL, NIS, NLM, NLP, NLS, NLX, NMI, NMU, NNI, NOC, NOL, NOR, NOS, NOT, NPC, NPL, NQS, NRZ, NSE, NSF, NSI, NSS, NTP, NTU, NVS, OAP, OBE, OBJ, OCL, OCP, OCR, OCS, OCX, ODA, ODC, ODI, ODP, ODT, OEM, OIC, OID, OIL, OLC, OLE, OMA, OMF, OMG, OMR, OMS, OMT, ONC, OOA, OOD, OOF, OOP, OPC, OPS, ORB, ORM, OSA, OSD, OSE, OSF, OSI, OSP, OTI, OTP, OTT, OWL, PAD, PAL, PAM, PAP, PAT, PAW, PBD, PBM, PBX, PCA, PCB, PCF, PCI, PCL, PCM, PCN, PCS, PCU, PDA, PDC, PDF, PDH, PDL, PDM, PDP, PDS, PDU, PEM, PER, PEX, PFE, PFL, PFP, PGA, PGP, PIC, PID, PIE, PIL, PIM, PIN, PIP, PIT, PKE, PKI, PLC, PLD, PLL, PMC, PML, PNG, PNP, POC, POE, POM, POP, POS, PPC, PPD, PPL, PPM, PPN, PPP, PQS, PRA, PRI, PRL, PSA, PSD, PSF, PSI, PSK, PSL, PSN, PSO, PTF, PTI, PTN, PTT, PUB, PVC, PVM, QAM, QBE, QCA, QIC, QMW, QNX, QPE, RAD, RAL, RAM, RAS, RCC, RCL, RCS, RDF, RDI, RDL, RDS, REC, REM, REP, REX, RFC, RFE, RFI, RFP, RFT, RGB, RIP, RJE, RKM, RLE, RLF, RLL, RMI, RMS, RNF, ROM, RPC, RPG, RPI, RPL, RPM, RPN, RPT, RRL, RRS, RSA, RSI, RSL, RSN, RSS, RTF, RTI, RTL, RTM, RTP, RTS, RTT, RWP, SAA, SAC, SAD, SAL, SAM, SAN, SAP, SAR, SAS, SBD, SBM, SBR, SCA, SCC, SCI, SCL, SCM, SCO, SDE, SDF, SDH, SDI, SDK, SDL, SDM, SDP, SDS, SEA, SEC, SED, SEE, SEI, SEL, SEM, SEP, SET, SEX, SFA, SFL, SGI, SHA, SIA, SIG, SIL, SIP, SIR, SKU, SMB, SMG, SMI, SML, SMM, SMP, SMS, SMT, SNA, SNI, SNR, SOH, SOJ, SOL, SOM, SOS, SPC, SPD, SPE, SPG, SPI, SPL, SPM, SPS, SPX, SQE, SQL, SQR, SRI, SRL, SRP, SSA, SSE, SSI, SSL, SSR, STB, STD, STP, STX, SUB, SVC, SVG, SVS, SYN, TAA, TAB, TAC
The best things in life aren't things ... but, a Pi comes pretty darned close!
"Education is not the filling of a pail, but the lighting of a fire." -- W.B. Yeats
In theory, theory & practice are the same - in practice, they aren't!!!