at the minute I'm really interested in the synthetic meat that both Bill Gates and Elon Musk are funding research into, as a meat lover and someone who actually cares about the welfare of animals I would love for the product to become affordable and sustainable.

In the realm of the fantastic, AI (AGI), theoretical propulsion systems (EM drive, Alcubierre warp drive, etc...).
In closer proximity to the here and now, I’m really interested in the emerging study of the microbiome (microbiome... ology? I don’t know, but remember where you saw it first). I believe that we will be blown away when the field comes into maturity and I anticipate that we’ll find that the microbiome effects our physiology and psychology in profound and earth-shattering ways.

I don't follow science much, discovering new species, rediscovering species thought extinct, the idea that the speed of light is actually not a constant based on mitigating factors, the breakthroughs with the large Hadron collider, experiments in teleporting photons, and super high speed cameras that can actually show the progress of a beam of light through a bottle of water.

We are living in a Golden Age of space exploration. When I was a kid everything we knew about tbe Solar System pretty much fit in the first few pages of an atlas. Now have visited every planet, landed probes on several of them, and including some moons. Never ceases to amaze, I visit APOD regularly.

The developments in cosmology and quantum mechanics are fascinating. But for my money the most directly fascinating is the development of AI. Also very potential scary. Within 20 years AI will exceed human intelligence, it is said. Then it will go exponential. Wow!

Donald Trump...