Strategy is an old word, it has many different connotations. One of them is just the reasoning behind your moves, and seems to be the one you prefer. That's valid, and yes, we all have a strategy in that sense of the word.
Another valid connotation of strategy is a global aim, to contrast with tactics, the local decisions. In that view, it can be argued that some people use negligible strategy, making good local shape without thinking or looking at the rest of the board. As a thought experiment, we could imagine taking a 9x9 square of a board, centered on the other player's last move and sending it to a different professional each turn. I'm willing to bet they could win against at least a 8kyu with literally zero global information.
A third connotation being used is that strategic is usually a positive term, that 'strategy' without any modifier means 'good strategy'. In that view, adding reinforcing stones to living groups or playing close to walls isn't strategy because it creates losses. This is the connotation where oracles become relevant to the discussion, because what a move actually accomplished dictates if it was 'strategic'.
SmoothOper wrote:Strategy is a way to consider something less than simply every possible combination of legal moves while deciding how to play the next move, in this case a random strategy considers no moves.
SmoothOper wrote:Maybe my definition of strategy is disturbing to many for its inclusiveness, possibly even encompassing many people's play who would prefer to be considered a-strategic or absent strategy and also strategies that aren't very good.
SmoothOper wrote:That being said in any one of these strategies, only a small set of tsumego/tesuji will occur, they may be different, for each but only a small set will occur.
I think these three quotes show where the conversation is getting lost. "a small set of tesuji apply to each strategy" is an extreme claim, and can seemingly only be true with a very restrictive definition of strategy. The vast majority of strategies involve 'find life for weak groups, kill the enemy groups if it's possible and profitable, keep connected, disconnect my opponent's stones'. And each of those could be accomplished in a huge number of ways: maybe a squeeze kills a group, maybe nakade, maybe patting-the-racoons-belly. So from your thesis, we expect you to argue for some definition of strategy that would exclude most situations from the board. But instead you argue that strategy is just how you choose to play the game. So given that definition, why do you think each strategy only has a small set of relevant tesuji and tsumego?