The PnL in between $t$ and $T$ could be the sum of all incrementals PnLs. That may be if we denote by $PnL_ uto v $ the PnL in between situations $u$ and $v$, then In case you hedge each individual moment, You would not realize the full pnl from https://bookmarkvids.com/story20603521/not-known-facts-about-pnl