Dear Readers,

For seventy years, fusion energy has been humanity's most tantalizing broken promise - the power of the sun, always thirty years away, never arriving. But right now, something remarkable is happening: private companies are raising billions, tech giants are signing power purchase agreements for electricity that doesn't exist yet, and engineers are installing reactor magnets with the urgency of a startup racing to ship.

Meanwhile, AI is devouring energy at unprecedented rates, straining grids and turning electricity into the new bottleneck for progress. In today's issue, we dive deep into the fusion revolution: we'll walk you through what's actually happening inside those plasma chambers, why the old joke might finally be expiring, and - most critically - what unlimited clean energy would mean for the AI scaling race that's already pushing our infrastructure to its limits. Whether fusion becomes the backbone of a new energy era or remains an expensive experiment, by 2035 we'll finally have our answer - and today, we'll give you everything you need to understand what's at stake.

All the best,

For decades, scientists have chased what many called an impossible dream: bottling the power of the sun. Fusion energy - the same process that fuels every star in the universe - has promised virtually limitless clean energy since the 1950s. Critics have long joked that commercial fusion is always "30 years away." But something remarkable is happening right now. Private companies are raising billions, governments are racing to establish regulatory frameworks, and tech giants are signing power purchase agreements for fusion electricity that doesn't exist yet. Meanwhile, artificial intelligence is devouring energy at unprecedented rates, creating an urgent need for exactly the kind of abundant, carbon-free power that fusion promises to deliver.

Fusion’s appeal isn’t just environmental; it’s strategic. The world is moving into an era where electricity is the “master resource” behind everything else: transportation, heating, industrial production, and increasingly the digital economy. Data centers - especially those built for AI training and inference - are becoming a new kind of heavy industry, concentrated in clusters, hungry for steady power, and politically sensitive in a way that server farms never used to be. Energy is no longer a background variable for technology; it is the plot.

So the question is no longer simply “Is fusion possible?” Physics has already answered that with a confident yes. The sharper question is this: can fusion become an engineered, economical energy source fast enough to matter—fast enough to influence the global energy mix by 2035, and fast enough to change the constraints under which AI and the race toward AGI are unfolding?