How would it be more optimal? As I said, if you pass in
`file.byChunks(some_amount).joiner`, this will still read the
file in large chunks. It's less optimal now because `read` has
to allocate an array on every call (easily avoidable by passing
in a reusable buffer, but still).
Equivalent code with ranges:
auto range = file.byChunks(4096).joiner;
ubyte[] data = range.take(VERY_BIG_NUMBER).array;
ubyte[] other_data =
range.take(OTHER_VERY_BIG_NUMBER).array;
The range solution copies from a buffer to a newly allocated
array many times, doing many system calls.
The read(stream) solution allocates a new array and does one
system call.
Sorry for the miscommunication.
