Board Thread:General Discussion/@comment-26907577-20191031134344/@comment-32182236-20191031190715

Alphys' version of Entry 17 tells us that the reason why monsters melt is because there is not enough physical matter to hold that much determination.

Thus, the amount of determination one can have without melting is proportional to the amount of physical matter one has.

L=M*A

L is the limit for DT, M is mass, and A is a constant.

The amount of determination it takes to persist (P), is likely constant, however. Let's call this constant B.

In Undyne's case, L is less than P, because M*A is less than B. (A itself is likely also less than B.)

In Asgore's case, L is more than P, because a greater mass means a greater L.

This is also why humans can handle more determination than monsters. Frisk has the ability to SAVE and LOAD, meaning they're more determined than the Amalgamates. Yet they're not melting...

Thus, Boss Monsters likely have more physical matter than normal monsters do.

However, this would imply that Asgore is more determined than Undyne. (Though that at least means the hypothesis is falsifiable! If we can show that Undyne is more determined than Asgore, then this hypothesis is busted.)

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It could also be as Person said: Perhaps there's a difference between injecting determination in one's body and injecting determination in one's SOUL. Though determination would naturally be generated within the body, as Undyne melts. Why that determination isn't going into the SOUL to keep that alive? We have no idea.