u/neeraj1996

I just finished watching Death Note for the first time. While I love the overall concept, the entire final arc and the confrontation between Light and Near left me with a lot of confusion.
I cannot find satisfactory explanations for several major logical inconsistencies, strategic oversights, and timeline errors in the anime script.
Can anyone help make sense of these?

Near’s Unforgivable Risk at the Warehouse: Near enters the warehouse completely confident that he has won because he swapped the notebook in the bank vault. But how could he possibly be sure that Mikami didn’t have a third real notebook, or even just a small torn-out piece of the Death Note hidden on his person? Since individual scraps retain full killing power, and Light easily could have instructed Mikami to hide a backup piece in his shoe or wallet, betting the lives of his entire team on a pure physical book swap seems completely reckless and out of character for a genius.

Near Missing the Decoy Book / Needing Mello: How could someone as brilliant and calculating as Near completely miss the possibility of a decoy book until Mello dropped it in his lap? If Mello hadn't taken impulsive, rogue action to kidnap Takada, Near would have walked into the warehouse completely fooled by Light’s trap and gotten his entire team killed. It feels like a massive plot hole that Near's "genius" strategy was actually fundamentally flawed and relied entirely on a fluke intervention.

Leaving the Notebook in an Unmonitored Vault: Mikami explicitly knew he was being followed by Gevanni and that his daily bag was being tampered with. Why would a hyper-cautious prosecutor leave the real notebook in a commercial bank vault where he couldn't watch it overnight and where an FBI-level agent could easily break in? Even if they thought a perfect handwriting forgery was impossible overnight, leaving the ultimate weapon completely unguarded while knowing you are under active surveillance makes no sense.

The Double-Blind Logic Failure: Mikami is portrayed as exceptionally sharp because he meticulously inspects his public decoy book and successfully notices that Near's team tampered with the pages. Yet, when he goes to the bank vault to grab his ultimate weapon on the final morning, he suddenly loses all of his established caution. He blindly assumes the vault book is perfectly safe and doesn't bother checking a single page for tampering or forgery. How can he be smart enough to catch a tampered decoy book but oblivious enough to walk into a warehouse with a completely replaced main book?

The Paradox of Near's Knowledge & Fresh Deduction (Episodes 30-31): This is a massive writing loop. The anime never explicitly states Near has access to L's files, nor has he seen a notebook. Yet, when Mello says "one rule is fake," Near magically knows all the rules from memory and guesses the 13-day rule is a lie. This implies he must know L's case file. However, in the very next episode, Aizawa calls Near to explain the 50-day confinement and Soichiro's staged fake execution, and Near acts completely surprised, making a "fresh deduction" on the spot that the suspect must be Soichiro's son. These two points contradict each other. If he didn't know L's files, how did he know the 13-day rule in detail? If he did know L's files, why was the confinement and the fake execution brand-new information to him?

The Surveillance Bugs (Episode 32): Aizawa and Mogi thoroughly search Light and Misa's active apartment in Episode 31, looking under furniture and explicitly declaring the room 100% clean. Yet, in the next episode, Mello and Matt are shown listening to an audio feed from a wiretap placed in the exact same room. How did they bypass a police sweep inside a heavily monitored apartment, while Mogi was staying with Misa?