It's definitely not a problem right now. With the current block size limit (and blocks are currently filled less than 50%), it will take at least 20 years to su

It's definitely not a problem right now. With the current block size limit (and blocks are currently filled less than 50%), it will take at least 20 years to surpass 1 terabyte. Bitcoin has to become much, much more successful (think hundreds of millions of users) for the blockchain size to ever become a problem.