Quote from: 20kevin20 on Today at 01:34:13 PM

Would Bitcoin be more secure against extremely powerful computing tech with more words in the dictionary list, a larger number of seed words and perhaps a longer BTC address/privkey?

If you extended your seed phrase from 24 to 50 words, it wouldn't make it more secure in a case of a brute force. The attacker would have to either search among 2048²⁴ or 2048⁵⁰ different combinations. But, an attacker wouldn't need to brute force any of the seed phrases above to steal your money; he'd find it less demanding if he went straight by brute forcing 2¹⁶⁰ RIPEMD-160 hashes.

Quoting one of my posts:

Quote from: BlackHatCoiner on May 07, 2021, 07:12:28 AM

I'm just adding the numbers decimally:

Code:

2^128 = 340282366920938463463374607431768211456 (12 words)
2^160 = 1461501637330902918203684832716283019655932542976 (RIPEMD-160 hash different combinations)
2^256 = 115792089237316195423570985008687907853269984665640564039457584007913129639936 (24 words)

I believe that the seed system works fine. You shouldn't think about a dictionary list with more words, but rather with bits. A twelve words seed phrase is a 132 bits representation in BIP39. A twenty four words seed phrase is 264 bits representation. I highly doubt if these numbers can be characterized as “weak”.