Playing in the top-left corner (0,0) is strategically strong because:

1. It sets up a potential diagonal win line from top-left to bottom-right (0,0 -> 1,1 -> 2,2)
2. It creates two possible winning paths - along the top row and down the left column
3. With my X already in the center, taking a corner creates a fork threat that will be difficult for my opponent to defend
4. If my opponent responds by blocking one threat, I can pursue the other direction in my next move

This move provides maximum flexibility for my future turns while putting pressure on my opponent to play defensively.