Heaven is a Neolithic diametrically vertical rejection of the deterioration of corpses that disappear into the ground under gravity. Of course you cannot foist your version of an afterlife on others and thereby accrue income without some persuasive or unarguable words from the deity you represent, so you must people your heaven with your deity and make sure that your deity writes something or other - it doesn't have to be legible, comprehensible, consistent- so that you can say that you have the single unfailing correct interpretation and are the deity's authorized salesmen representatives.
It's easiest to think of heaven as an orthogonal brane or 4th spatial dimension in which our three dimensional universe is placed. Orthogonality that we can theorize but not demonstrate conserves the idea that God has TCP/IP addresses for every hair of your head and hears what you think with attosecond response time. This is superior to attempting to fit a scientifically demonstrable heaven -that so far has refused to demonstrate itself- into our present understanding of the universe, which would place it beyond the observable hubble volume, or, before the existence of the universe, and require God to communicate faster than light speed. I recently read an article in Scientific American that CERN was able to spell out "I am" using the Higgs Boson ok that's lame jk. I mean, there's a lot of wavelengths that are invisible - near IR, mid IR, far IR, microwave, radio, xray, gamma. What wavelength does heaven radiate at? We should be able to detect traces of it if it occupies some frame of reference to our reality. (Think of the little pips of plastic that tell you an item was molded.) If one feels that "the fingers of god" phenomena -because someone said "god"- is evidence of such a divine presense in our reality, I invite that individual to read up on what the fingers of god are, actually.
I ask to be unsubscribed from the deity-heaven emails, but I do think of the future itself with the same fervent anticipation as others think of heaven. The future is a domain of mostly good that surrounds an unavoidable chunk of bad. The good is a pervasive general well-relaxed ongoing improvement in some optimal majority of people's lives, punctuated by occasional catastrophic reversals of human decency.
Since I do not subscribe to warp drive, either, I figure that humanity's future would get them as far as the Oort Cloud, a gossamer shell of comets one light year from the sun, and the last gasp of dominance from our sun, but not colloquially "part of the Solar System". Voyager is only a hundred or so AU's out. It will take hundreds or thousands of years to reach the Oort cloud.
