The hole restrict is used as a result of there are virtually infinite addresses you may generate by way of Hierarchical Deterministic technology. If you did not have a restrict, the pockets must generate all of them, simply in case, to see if any the place utilized in transactions. That’s unattainable, there are simply approach, approach too many doable youngster addresses.
Is there the chance to set it as much as infinity?
This is identical as having no restrict, and it is unattainable, as above.
would importing exterior non-public keys to my pockets, with out scanning, and producing a single tackle per non-public key resolve the hole restrict dilema (in a Bitcoin Core pockets, for instance)?
The hole restrict is particular to Hierarchical Deterministic wallets, the place you may deterministically generate many addresses from a single brief seed. This makes backups tremendous simple – backing up the seed means you’ve got backed up all previous and future addresses your pockets will generate. The seed is brief so you may even write it down by hand. And HD has different advantages like having the ability to generate youngster public keys with out entry to the key keys (helpful for safety, to keep away from having secret keys “sizzling” on internet-connected units).
Should you simply imported a number of particular person keys, you would not want a niche restrict, however you’d lose all the advantages of HD wallets. That is how Bitcoin Core’s pockets used to work – colloquially generally known as the “bag of keys” mannequin. HD is unquestionably the higher strategy to handle keys.