How long can ASD last?

I'm curious to know, "How long can ASD, or Autism Spectrum Disorder, last in an individual?" It's a question that often arises in discussions about the developmental disorder, and one that touches on the complexity and variability of the condition. Some people may experience lifelong challenges associated with ASD, while others may experience improvements or even a full recovery with appropriate support and interventions. Can you shed some light on the factors that influence the duration and severity of ASD, and what the research suggests about potential outcomes for those affected?