Density is defintly amazing in DNA, its just so fragile. Even our own bodies have a constant degridation of our DNA… I wonder if they could take that concept and make something sturdier by using slightly different molecules to make up the chains.
Maybe shorter chains with stronger cross bonding & a gentle method of reading the chain could also help?
Its definetly an interesting route & itll be cool to see what happens with it over the next 10-15 years.