Will the Andes mountains become taller in the future?

Yes, the Andes mountains are likely to continue rising in the future due to ongoing tectonic activity. The collision of the Nazca and South American tectonic plates causes uplift, and this process is expected to persist, albeit at a slow rate. However, erosion and other geological processes may counteract some of this uplift. Overall, while the Andes will likely become taller over time, the rate and extent of this increase will depend on various geological factors.