You could read the linked post and the Github repository https://github.com/CardanoSolutions/ByronWalletRecovery linked from there. It seems like in the early days it was possible to not set a password at all or set an empty password.
But, honestly, @KtorZ and @_ilap know much more about these early Byron wallet recoveries than me.
Thats so sad
I don’t know how much crypto we are talking about, but you could make a backup, just in case the computer crashes.
Also you have unlimited tries to brute force the spending password.
Brute forcing the spending password is ‘easier’ that the seed phrase (more possible combinations). Maybe someone will come up with a piece of software to brute force it.
When creating a new wallet you could consider storing your seed phrase redundant, like in this template: