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A $90k dev and a $300k dev often know the same algorithms
Same data structures. Same languages. Same frameworks.
So what's the difference?
The $300k engineer is 10x faster in their environment
They don't Google the same commands every day
They don't lose hours to tools they never properly learned
"The Missing Semester of Your CS Education 2026" by MIT CSAIL fixes exactly that
Free on YouTube. Brand new 2026 edition. Just dropped
The tools separating $90k devs from $300k engineers:
• Shell & scripting – stop Googling bash commands you use every single day
• Vim & editors – why the best engineers are terrifyingly fast in their terminal
• Git internals – not just git push, what's actually happening underneath
• Debugging & profiling – how senior engineers find bugs in minutes not hours
• Agentic coding – how top engineers actually use AI tools to move 10x faster in 2026
Your CS degree taught you theory
Nobody taught you the tools that make you dangerous
That's the gap. That's the salary difference
