The author refines his idea by inventing a 'mosquito gauge' to quantify the severity of mosquito infestations, indicating a shift from subjective descriptions to objective measurements.
It shows the author refining his idea by developing a quantitative measure to represent the severity of mosquito infestations. As the passage indicates, the situation worsens progressively; the initial descriptive adjectives were insufficient to convey the escalating problem. Thus, the author creates a 'mosquito gauge' to provide a clearer, more objective representation of the mosquito problem experienced during the journey.
This gauge involved exposing a hand for five seconds and counting the number of mosquitoes, with the counts increasing from 5-10 to a staggering 100-125 mosquitoes as the conditions changed. This methodical approach refines the author's initial idea by introducing systematic measurement, which allows for comparisons over time and varying locations, illuminating the change in mosquito population density more effectively.