The fitness themes of the moment are very much functional fitness and long-term thinking. Looking the part is one thing, but staying fit and healthy for life requires a focus on fundamental movement patterns and sustainable programming. But... we can accept all that and still want bricks for biceps.
The fastest way to build big arms isn’t to crank out as many curls as you can. To increase the size and strength of your guns you need to work your biceps from a variety of different angles (don't forget those triceps, either).