Fair skepticism. Let me give you the honest answer:
The overlap with traditional SEO: ~70%
Comprehensive content, good structure, authority signals - all of this has always mattered. “Semantic SEO” isn’t revolutionary.
What’s actually new: ~30%
Here’s what’s genuinely different:
1. Entity thinking vs keyword thinking
Old: “Target keyword ‘project management software’”
New: “Establish our brand as an entity associated with the project management category”
AI systems build knowledge graphs of entities and relationships. Your brand being recognized as an entity in the right categories matters more than keyword matching.
2. Topic comprehensiveness at a different level
Old: “Cover all related keywords”
New: “Cover the topic so completely that AI considers you an authoritative source”
AI systems evaluate topical authority more holistically than keyword density.
3. Explicit semantic signals
Old: Use keywords naturally
New: Use schema markup, consistent entity naming, clear concept definitions
AI systems benefit from explicit signals that help them understand what your content is about.
Bottom line: Not totally new, but not just buzzwords either. There’s a genuine evolution in HOW search works that requires some optimization adjustment.