If You Aren't Sure Which Way To

Focus Is A Matter Of Deciding What Things You're Not Going To Do.

I Wanted To Remain A Technical Adviser For Id, But It Just Didn't Work Out. Probably For The Best, As The Divided Focus Was Challenging.

The Important Point Is That The Cost Of Adding A Feature Isn't Just The Time It Takes To Code It. The Cost Also Includes The Addition Of An Obstacle To Future Expansion. Sure, Any Given Feature List Can Be Implemented, Given Enough Coding Time. But In Addition To Coming Out Late, You Will Usually Wind Up With A Codebase That Is So Fragile That New Ideas That Should Be Dead-simple Wind Up Taking Longer And Longer To Work Into The Tangled Existing Web. The Trick Is To Pick The Features That Don't Fight Each Other.

It's A Good Thing Doom 3 Is Selling Very Well.

You Can Prematurely Optimize Maintainability, Flexibility, Security, And Robustness Just Like You Can Performance.