I never imagined that one day I would change my mind about a wallet because of things like 'how fast the transfer is'. Previously, when using a wallet, internal transfers were mostly done by transferring from a sub account to the main account, either by card, waiting for confirmation, or silently thinking to avoid bugs. It felt like money was clearly in your pocket, but you had to queue up to withdraw it. Until recently when I really used @ Backpack for a while, they directly redone the internal transfer layer - any sub account ↔ Any account can be accessed in seconds, and it is stable at the same level as the trading system. Only when this layer is done well, can things like fiat currency channels, global payments, and fund scheduling really run smoothly. Yesterday, Sol Chain received 0% fee, and SKR was also launched. A friend received a 0 fee swap directly in the Backpack wallet after receiving it on Sol's phone, without jumping dApps or authorization, and the process was very smooth! The significance for users is actually particularly direct: saving money (wallet swap/cross chain zeroing), saving trouble (one click completion), being safer (fewer dApps, less phishing), and experiencing a closed loop (on chain → exchange → future fiat currency in and out). This is not about doing a certain function well, but about feeling for the first time that wallets, transactions, and fund flows are connected together. Here we have to mention @ armaniferrante's narrative: the advantage of vertical integration is essentially economies of scale. When others are forced to collect fees in strange places, you can instead choose the most beneficial way for the user. Now Backpack is very simple: 0 fee exchange, 0 fee bridging, 0 fee USD deposit and withdrawal, 0 fee spot (beta version) in the wallet, and it does not affect the ARR in 2025, because they do not make money by pumping, but by making money in the layers of transaction execution, stablecoin returns, lending, staking, and future vaults that should truly make money. The cost is not gone, it's just that it has changed from 'user experience' to 'system scale dilution'. The biggest benefit of this change is that everyone can go for arbitrage. Most people are not incapable of arbitrage, but are deterred by cost and speed. Previously, arbitrage was stuck in three things: uncertain transaction fees, slow transfers, and lost opportunities for money on the road. Backpack can be cleared in one go: 0 fee+internal seconds to+wallet directly connected to the trading system. On chain spread arbitrage allows for selling while others are still transferring funds, and funds in multiple sub accounts can flow based on "opportunities" rather than "accounts". The cost of new coins, airdrops, and participation in activities is close to zero, and even begins to have the structural advantage of time arbitrage. When the cost approaches zero and the speed approaches real-time. Others are still saying 'I saw it but the money hasn't arrived', but you have already finished it. This is also the reason why I am willing to continue using @ Backpack.