Not necessarily IMO. Alcoholics forget very quickly what they have said and tend to be very repetetive when speaking.
(quote)
Memory impairment is one of the most common problems associated with alcohol related brain impairment (ARBI). Some people struggle to remember things from day-to-day, while others have difficulty remembering skills, knowledge or information they have learnt in the past.
People with ARBI can experience problems with:
learning new information
focusing on a topic of conversation
retrieving information from the past stored in their memory. They often have difficulty remembering what happened when (the timing of events in memory)
remembering recent events or information they have recently acquired
making errors when recalling information from memory. This can result in information being muddled or incorrect, and is sometimes called confabulation.
Importantly, the confabulations are caused by memory failures they are not lies.
https://www.betterhealth.vic.gov.au.../alcohol-related-brain-impairment-memory-loss