Strong businesses always come back and the CAGR improves significantly if shares are purchased after a big pullback.
Pull up the long-term charts, you'll see.
Compounding only works with rock-solid/strong companies which are able to grow their business over time.
The end.
Of course, a little work is needed when selecting the compounders. What are odds of the following going bust?
$MSFT $FB $BABA $TCEHY $V $MA $MCD $SBUX $AMZN $HD $NKE $WM $UNP $ADBE $GOOGL
An investor can and should exit if the thesis doesn't play out.
Long-term compounding doesn't mean riding ill donkeys!
Furthermore, I also avoid highly leveraged companies and cyclical businesses.
Pretty tough to go bankrupt if business is growing rapidly and debt is low.