Non-Lagging Longevity Zones [BigBeluga]

🔵 OVERVIEW
A clean, non-lagging system for identifying price zones that persist over time—ranking them visually based on how long they survive without being invalidated.

Non-Lagging Longevity Zones [BigBeluga] uses non-lagging pivots to automatically build upper and lower zones that reflect key resistance and support. These zones are kept alive as long as price respects them and are instantly removed when invalidated. The indicator assigns a unique lifespan label to each zone in Days (D), Months (M), or Years (Y), providing instant context for historical relevance.

🔵 CONCEPTS

• Non-Lag Pivot Detection: Detects upper and lower pivots using non-lagging swing identification (highest/lowest over length period).
  

  h = ta.highest(len)
  l = ta.lowest(len)
  
  high_pivot = high[1] == h[1] and high < h
  low_pivot  = low[1] == l[1] and low > l

• Longevity Ranking: Zones are preserved as long as price doesn't breach them. Levels that remain intact grow in visual intensity.
  
• Time-Based Weighting: Each zone is labeled with its lifespan in days, emphasizing how long it has survived.
  

  duration = last_bar_index - start
  days_ = int(duration*(timeframe.in_seconds("")/60/60/24))
  days = days_ >= 365 ? int(days_ / 365) : days_ >= 30 ? int(days_ / 30) : days_
  marker = days_ >= 365 ? " Y" : days_ >= 30 ? " M" : " D"

• Dynamic Coloring: Older zones are drawn with stronger fill, while newer ones appear fainter—making it easy to assess significance.
  
• Self-Cleaning Logic: If price invalidates a zone, it’s instantly removed, keeping the chart clean and focused.
  

🔵 FEATURES

• Upper and Lower Zones: Auto-detects valid high/low pivots and plots horizontal zones with ATR-based thickness.
  
• Real-Time Validation: Zones are extended only if price stays outside them—giving precise control zones.
  
• Gradient Fill Intensity: The longer a level survives, the more opaque the fill becomes.
  
• Duration-Based Labeling: Time alive is shown at the root of each zone:
    • D – short-term zones
    • M – medium-term structure
    • Y – long-term legacy levels
  
• Smart Zone Clearing: Zones are deleted automatically once invalidated by price, keeping the display accurate.
  
• Efficient Memory Handling: Keeps only the 10 most recent valid levels per side for optimal performance.
  

🔵 HOW TO USE

• Track durable S/R zones that survived price tests without being breached.
  
• Use longer-lived zones as high-confidence confluence areas for entries or targets.
  
• Observe fill intensity to judge structural importance at a glance.
  
• Layer with volume or momentum tools to confirm bounce or breakout probability.
  
• Ideal for swing traders, structure-based traders, or macro analysis.
  

🔵 CONCLUSION
Non-Lagging Longevity Zones [BigBeluga] lets the market speak for itself—by spotlighting levels with proven survival over time. Whether you're trading trend continuation, mean reversion, or structure-based reversals, this tool equips you with an immediate read on what price zones truly matter—and how long they've stood the test of time.