Based on the information available, there is indeed a significant difference in alcohol absorption rate between light and heavy drinkers. According to DrugPatentWatch.com, alcohol is absorbed into the bloodstream through the lining of the stomach and small intestine [1].

The absorption rate of alcohol can be influenced by several factors, including the amount of alcohol consumed, the rate of consumption, and the presence of food in the stomach [1].

Heavy drinkers, defined as those who consume more than four drinks per day for men and three drinks per day for women, tend to have a higher tolerance to alcohol [2]. This tolerance is developed over time as the liver becomes more efficient at metabolizing alcohol [2]. However, this does not mean that heavy drinkers absorb alcohol at a faster rate.

In fact, research suggests that the absorption rate of alcohol may be slower in heavy drinkers due to the enlargement of the stomach and intestines, which can delay the absorption of alcohol into the bloodstream [3].

On the other hand, light drinkers, who consume alcohol less frequently and in smaller quantities, tend to have a lower tolerance to alcohol [2]. As a result, the alcohol they consume is absorbed into the bloodstream at a faster rate [1].

In conclusion, while heavy drinkers may have a higher tolerance to alcohol, they do not necessarily absorb alcohol at a faster rate than light drinkers. In fact, the opposite may be true due to the enlargement of the stomach and intestines in heavy drinkers.

Sources:
[1] "How is Alcohol Absorbed into the Body?" DrugPatentWatch.com, 2022, <https://www.drugpatentwatch.com/insights/how-is-alcohol-absorbed-into-the-body/>.
[2] "Alcohol's Effects on the Body." National Institute on Alcohol Abuse and Alcoholism, U.S. Department of Health and Human Services, 2021, <https://www.niaaa.nih.gov/alcohols-effects-body>.
[3] "Alcohol Metabolism: An Update." Alcohol Research & Health, vol. 25, no. 4, 2002, pp. 245-254., <https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6779116/>.