What Farid said below. I would assume le sserafim has read Nassim Taleb, because that is where this term originated from.
The concept of antifragility uses examples from science and
mathematics to argue that some systems are strengthened by encounters with disorder. It is an interesting concept that basically says you can thrive in a system of disorder, randomness, or stress. Antifragility goes beyond mere resilience (the ability to bounce back from adversity) in that it embraces and gains from uncertainty. Decentralization, diversity, experimentation and innovation are characteristics of antifragile systems as they allow continuous improvement and
new learning from disruptions.
Say you got laid off. You could view that as a chance to not only bounce back (find a new
job), but also as a chance to expose yourself to
better job or career opportunities, as well as anything that could improve your wellbeing. Basically, it's the "improvise, adapt, overcome"
meme.
The hacker group Anonymous is also an incredibly good example of antifragility. No matter how
hard governments and law enforcers
try to destroy the organization, it
will never cease to die due to how it's structured.
While most portfolios crumbled during the stock market
crash, Dave's grew in value thanks to its antifragile properties. By diversifying across asset classes instead of focusing on any
one sector, his portfolio benefited from the volatility instead of breaking under the
pressure.