In Spider silk novel, the intruders from another dimension have to work with a series of disabilities. They have made lots of technology to help them combat this though. In our own world, disability technology is improving by leaps and bounds.  For instance, Microsoft is knowing working with programs to help blind children learn how to code and perform other tasks that will make them competitive in the future job market.

For more on this amazing development, check out this link:

https://www.windowscentral.com/microsofts-projects-fizzyo-and-torino-help-children-cystic-fibrosis-and-visual-impairments