The 5-minute time frame is often considered to be one of the best for intraday or scalp trading because it allows traders to make quick decisions based on short-term price movements. Intraday and scalp traders typically look for small price movements in a short period of time, and the 5-minute chart provides a detailed view of these movements. Additionally, the 5-minute time frame allows traders to easily identify key support and resistance levels, and to quickly enter and exit trades based on these levels. Overall, it's considered a good balance between having enough data to make informed trades, while still being able to act quickly on trades.