The main benefit of Brexit is that laws rules and regulations are now returned to the UK. We can't be dragged into a Federal Europe by default
We are tied to EU regulations with this deal, of course we can choice not too (as we could before) but as before there will be consequences in imposition of Tariffs.
UK can be world focused (eg replacement of erasmus with a worldwide scheme) but also allow for more localisation of supply chains. I can well imagine it will take 50 years for the benefits of both to become apparent
The UK could have had a global student exchange scheme whilst still in the EU, indeed many Uni's have their own schemes, usually with American universities.
We don't have enough of the engineering skills to make everything Toyota or Ford might need.
When we did have localised supply chains, we produced total crap, Leyland cars or (the old) Triumph motorcycles, 1970s bikes based on pre war designs.
But look what the reborn Triumph factory has done whilst IN the EU? become a serious competitor to the Japanese and european 'bike makers, they export 85% of production, brexit has made that more expensive, with more delay, with its non tariff barriers, they already had factories outside of europe.