This is a combination of three moving price simple moving averages diffs and volume SMA diff. If you see all mountains below horizon and buildings over horizon, it may be a good time to buy. If you see mountains are above horizon and small reflections of buildings in a lake then it may be a good time to sell.
Open-source script
In true TradingView spirit, the author of this script has published it open-source, so traders can understand and verify it. Cheers to the author! You may use it for free, but reuse of this code in a publication is governed by House Rules.
You can favorite it to use it on a chart.
Disclaimer
The information and publications are not meant to be, and do not constitute, financial, investment, trading, or other types of advice or recommendations supplied or endorsed by TradingView. Read more in the Terms of Use.
