Ratio 2019 – Fall
10 Nov 2019, Sofia Event Center

Ratio 2019 – Fall
10 Nov 2019, Sofia Event Center

The fall edition of Ratio will let you learn about new scientific topics – presented in everyday language. We’ll share more about the talks and speakers soon.

Get Your Tickets

Over the years, the stage of Ratio has welcomed international speakers like Peter Watts, Christopher French, Maggie Lieu, Allain Buisson, Steven Le Comber, and many others. During the past 10 forums we searched for aliens, colonized the cosmos (at least in words), we linked maths with murder and malaria, we planned editing humans with CRISPR/Cas-9 technology, we researched the psychology of ghost sightings, we saw how neurons are connected in the brain, there were even ants and flies!

Come and join us on this scientific adventure – the tickets are on sale now!

Sofia Science Weekend

Travel, accommodation and tips
If you’re coming to Sofia for Ratio from abroad, check out our Travel, accomodation and tips page to find out how to turn your experience into an awesome weekend experience.

Lectures and talks

Robin Andrews: From Alien Volcanoes To Terminator Asteroids: The Solar System Is A Freak Show

Our solar system is stranger than you think. There are earthquakes that can last for nine days without anyone noticing them on Earth. On Saturn, it rains diamonds. On a moon of Jupiter, thanks to its awkward orbital ballet, the rock moves in the way that tides move on Earth, which fuels volcanic eruptions that outshine entire worlds. On Titan, the atmosphere is so soupy that if you flapped your arms, you could fly around. There might also be a metal mini-world out there that it once eruped rivers liquid iron. There are pancake eruptiosn on Venus. Pluto has a radioactive heart. And the asteroid that killed the dinosaurs may have sent some of Earth over to the moons of Jupiter and Saturn.

The solar system, including our own weird little blue marble, is a freak show. Let’s go on tour.

Martin Moder: Human Оptimization

The world’s first designer babies premiered about a year ago. Time to consider, whether we’re even capable of defining what “optimization” should mean.

Which of our traits are affected by genetics? How far are we from influencing their biological foundation? Could we enhancing general intelligence without tedious studying to finally become less stupid?

Moder does not only ask the most urgent questions, he even answers them.

Jonathan Pettitt: May Contain Neanderthal

Your DNA is not your destiny, but it is your ancestry; or at least it’s a record of it. Genetics has given us extraordinary insights into our collective human past, showing the patterns of migrations and unions that have shaped our individual genetic inheritances.Investigations into human evolutionary genetics have revealed some deeply non-intuitive findings, which have implications for both the present and future оf human biology and medicine.

Dr Jonathan Pettitt (University of Aberdeen) will explore our current understanding of human genetics and address such urgent questions as, “What does drinking milk have to do with white supremacy?”, “Why is the human genome like a fashion magazine?”, and “Why does my earwax smell?”

So Many Doomsdays, So Little Time – Discussion with Peter Watts, Gili Ron, Uri Aviv, Martin Moder

Before the insanity of climate change, there was the insanity of a nuclear arms race. If we survive the current crisis there’s no end of grim scenarios— grey-goo nanotech, hard-takeoff AI, bioengineered doomsday pandemic— waiting in the wings. An obvious common denominator connects all these apocalyptic threats.

Is this the best we can expect when a species that evolved to fuck and fight on some African savannah gets its hands on world-changing technology? Are there solutions more effective (and more radical) than the half-assed half-measures currently on the table? If so, will we embrace them in time— or will someone have to shove them down our throats?


10:00-10:45 Registration
10:45-11:00 Opening
11:00-11:45 Robin Andrews: From Alien Volcanoes To Terminator Asteroids: The Solar System Is A Freak Show
11:45-12:10 Coffee break
12:10-12:55 Martin Moder: Human Оptimization
12:55-13:45 Lunch break
13:45-14:45 Discussion panel: So Many Doomsdays, So Little Time
14:45-15:10 Coffee break
15:10-15:55 Jonathan Pettitt: May Contain Neanderthal
15:55-16:20 Coffee break
16:20-17:20 Q&A from the audience
17:20-17:30 Closing
Curious? Check out past event videos in English on Youtube.

You may be wondering why our ticket prices are so low? We rely on our sponsors to cover the main costs of the event, so our guests don’t have to. In this way, we’re doing our share for making popular science accessible to all Bulgarians – and it’s a nice addition for our foreign guests, who’ll be covering travel and accommodation costs on top of their event ticket.

The goal of Ratio has always been to let more people experience the beauty of science – with the help of our friends from STREAMER.BG you’ll be able to experience the event even if you can’t be there in person.

Get your virtual pass and you’ll get your access code by email. It lets you watch the live stream or review the talks later as a video on demand.

The event is carried out under a programme of, and funded by the European Space Agency (ESA).