Flap T: Really a D Sound? American English Pronunciation

The video explores the flap T sound, explaining its similarity to the D sound between vowels. It provides examples with words like 'dad' and 'daddy', highlighting the absence of a stop in airflow. The video also discusses how the flap T resembles the R sound in languages like Spanish and Japanese. It concludes by encouraging further learning through additional resources.

What is the significance of the statement that both T and D between vowels do not have a stop component?

What languages are mentioned that represent the alveolar flap with the letter R?