- What was a proposed alternative to Segwit?
increasing of block size from 1 MB to 2MB which would cause the hard fork and would be short term solution because of rapid growing transaction amount due to adoption.
- What did Segwit solve more than just the scaling issue?
Segwit solved the transaction malleability problem that was occurring allowing people to change transaction IDs. This allowed for 2nd layer applications to be created such as smart contracts.
- How is Segwit and the Lightning network connected?
Segwit allowed layer 2 scaling solutions such as the lightening network to be implemented and more complex smart contracts to be used which increased speed and reduced fees
- Are people, wallets and other services forced to use Segwit?
No because it was soft fork and wallets are adding Segwit feature.